Ember-sortable 4.0.0 crashes during build on ember-modifier

**Describe the bug**

When upgrading from `ember-sortable@3.0.1` to `ember-sortable@4.0.0` the following issue occurs during the build. Any idea what could be the cause here?

**To Reproduce**

Steps to reproduce the behavior:

Environment:
- Ember v3.28
- Node.js v14.19.1
- ember-sortable v4.0.0

Running `ember serve` results in the error at the bottom of this issue.

**Expected behavior**

The build to succeed. According to the README/CHANGELOG the versions of ember/node should be compatible.

**Screenshots**

/

**Additional context**

```
ERROR Summary:

- broccoliBuilderErrorStack: SyntaxError: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
at Object._raise (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:776:17)
at Object.raiseWithData (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:769:17)
at Object.raise (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:737:17)
at Object.semicolon (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:9165:10)
at Object.tsParseTypeAliasDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6176:10)
at Object.tsParseDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6498:23)
at Object.tsTryParseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6403:17)
at Object.parseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6973:26)
at Object.maybeParseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:12946:31)
at Object.parseExport (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:12884:29)
- code: [undefined]
- codeFrame: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
- errorMessage: ember-modifier/-private/function-based/modifier.ts: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
in /var/folders/9h/5lcgcj596r94wnt0shgmjdjc0000gp/T/broccoli-281835QSMOpGE670Q/out-499-funnel
at broccoli-persistent-filter:Babel > [Babel: ember-modifier] (Babel: ember-modifier)
- errorType: Build Error
- location:
- column: [undefined]
- file: ember-modifier/-private/function-based/modifier.ts
- line: [undefined]
- treeDir: /var/folders/9h/5lcgcj596r94wnt0shgmjdjc0000gp/T/broccoli-281835QSMOpGE670Q/out-499-funnel
- message: ember-modifier/-private/function-based/modifier.ts: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
in /var/folders/9h/5lcgcj596r94wnt0shgmjdjc0000gp/T/broccoli-281835QSMOpGE670Q/out-499-funnel
at broccoli-persistent-filter:Babel > [Babel: ember-modifier] (Babel: ember-modifier)
- name: Error
- nodeAnnotation: Babel: ember-modifier
- nodeName: broccoli-persistent-filter:Babel > [Babel: ember-modifier]
- originalErrorMessage: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
- stack: SyntaxError: /ember-modifier/-private/function-based/modifier.ts: Missing semicolon (37:10)

35 | // value from a `modifier()` call.
36 | export type FunctionBasedModifier =
> 37 | abstract new () => FunctionBasedModifierInstance;
| ^
38 |
39 | /**
40 | * The (optional) return type for a modifier which needs to perform some kind of
at Object._raise (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:776:17)
at Object.raiseWithData (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:769:17)
at Object.raise (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:737:17)
at Object.semicolon (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:9165:10)
at Object.tsParseTypeAliasDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6176:10)
at Object.tsParseDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6498:23)
at Object.tsTryParseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6403:17)
at Object.parseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:6973:26)
at Object.maybeParseExportDeclaration (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:12946:31)
at Object.parseExport (/node_modules/@babel/core/node_modules/@babel/parser/lib/index.js:12884:29)

=================================================================================

```