Makefile build failure

It appears the makefile or some dependency management in the build process calls a deprecated call within go, its using go get rather than go install or go mod tidy (to download go packages) in Tools/src/checkstyle.sh

```
Try update 'goimports'
go: go.mod file not found in current directory or any parent directory.
'go get' is no longer supported outside a module.
To build and install a command, use 'go install' with a version,
like 'go install example.com/cmd@latest'
For more information, see https://golang.org/doc/go-get-install-deprecation
or run 'go help get' or 'go help install'.
Run 'goimports'
```

```sh
#!/usr/bin/env bash
echo "Run checkstyle script"

# run gofmt
echo "Run 'gofmt'"
unformatted=$(gofmt -l `pwd`/src/)
if [[ -n $unformatted ]]; then
echo >&2 "Error: Found files not formatted by gofmt"
for fi in $unformatted; do
echo >&2 $fi
done
echo "Please run 'gofmt -w' for files listed."
exit 1
fi

# run goimports
echo "Try update 'goimports'"
GOPATH=`pwd`/Tools go get golang.org/x/tools/cmd/goimports # go mod tidy or go install

echo "Run 'goimports'"
unformatted=$(Tools/bin/goimports -l `pwd`/src/)
if [[ -n $unformatted ]]; then
echo >&2 "Error: Found files not formatted by goimports"
for f in $unformatted; do
echo >&2 $f
done
echo "Please run 'goimports -w' for files listed."
exit 1
fi

echo "Run 'go vet'"
ln -s `pwd` `pwd`/vendor/src/github.com/aws/session-manager-plugin
go vet ./src/...
```

-------
Edit:

Also appears the dependency tools/cmd/goimports does not seem to exist any longer (after changing the line identified above on my system):
```
Try update 'goimports'
cannot find package "golang.org/x/tools/cmd/goimports" in any of:
/usr/lib/go-1.24/src/golang.org/x/tools/cmd/goimports (from $GOROOT)
/home/kali/src/session-manager-plugin-1.2.707.0/Tools/src/golang.org/x/tools/cmd/goimports (from $GOPATH)
Run 'goimports'
/home/kali/src/session-manager-plugin-1.2.707.0/Tools/src/checkstyle.sh: line 21: Tools/bin/goimports: No such file or directory
```