[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>

tests/ts/test_dir/BUILD.bazel

@@ -0,0 +1,14 @@
+load("//:typescript.bzl", "flatbuffer_ts_library")
+
+flatbuffer_ts_library(
+    name = "typescript_transitive_ts_fbs",
+    srcs = ["typescript_transitive_include.fbs"],
+    visibility = ["//visibility:public"],
+)
+
+flatbuffer_ts_library(
+    name = "include_ts_fbs",
+    srcs = ["typescript_include.fbs"],
+    visibility = ["//visibility:public"],
+    deps = [":typescript_transitive_ts_fbs"],
+)

tests/ts/test_dir/typescript_include.fbs

@@ -0,0 +1,6 @@
+include 'typescript_transitive_include.fbs';
+namespace foobar;
+
+enum class: int {
+  arguments,
+}

tests/ts/test_dir/typescript_transitive_include.fbs

@@ -0,0 +1,5 @@
+namespace foobar;
+
+enum Abc: int {
+  a,
+}