[JS] Enable test-adaptive-card-schema test on js-ci pipeline

test-adaptive-card-schema is disabled in #6833

https://microsoft.visualstudio.com/AdaptiveCards/_build/results?buildId=43693304&view=logs&j=12f1170f-54f2-53f3-20dd-22fc7dff55f9&t=dee4e6ec-be1b-5671-4678-ab293b4004c5

schema id ignored http://adaptivecards.io/schemas/adaptive-card.json
D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\node_modules\ajv\lib\ajv.js:93
if (!v) throw new Error('no schema with key or ref "' + schemaKeyRef + '"');
^

Error: no schema with key or ref "http://json-schema.org/draft-06/schema#"
at Ajv.validate (D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\node_modules\ajv\lib\ajv.js:93:19)
at Ajv.validateSchema (D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\node_modules\ajv\lib\ajv.js:174:20)
at Ajv._addSchema (D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\node_modules\ajv\lib\ajv.js:307:10)
at Ajv.compile (D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\node_modules\ajv\lib\ajv.js:113:24)
at Object. (D:\a\1\s\source\nodejs\tests\test-adaptive-card-schema\lib\test-adaptive-card-schema.js:10:20)
at Module._compile (internal/modules/cjs/loader.js:1085:14)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
at Module.load (internal/modules/cjs/loader.js:950:32)
at Function.Module._load (internal/modules/cjs/loader.js:790:12)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:76:12)
##[error]Bash exited with code '1'.
Finishing: Build and run test in tests/[test-adaptive-card-schema]

Start with tests/test-adaptive-card-schema/lib/test-adaptive-card-schema.js and the test's package configuration, then run test-adaptive-card-schema to reproduce the missing draft-06 schema error. Check the js-ci pipeline entry that runs this test; done means the test is enabled there and completes successfully.