[TS/JS] Move TS tests to dedicated folder and deps upgrade (#7508)

* Move TS tests to dedicated folder and deps upgrade

* Attempt to fix generate_code

* Fix dir on CI

* Add js extension

* Fix missing extension

* Harmonize with test gen

* Unexplained code gen change

* Restore yarn.lock

* Naive attempt to fix bazel stuff

* Pin @bazel/typescript to 5.2.0

* Attempt to fix bazel

* More tweak

* Upgrade deps

* Tweak?

* Fix path

* Fix test package

Co-authored-by: Derek Bailey <derekbailey@google.com>

.github/workflows/build.yml

@@ -459,7 +459,7 @@ jobs:
     - name: compile
       run: yarn compile
     - name: test
-      working-directory: tests
+      working-directory: tests/ts
       run: python3 TypeScriptTest.py
 
   build-dart: