build: only stamp version info when releasing (#27362)

Also build releases into a dedicated output_base so you can't
accidentally publish with outdated version stamp.

Bump the version of rules_nodejs so we don't need to create the
symlink_prefixes for the .publish command to work.

PR Close #27362

packages/bazel/package.bzl

@@ -18,12 +18,13 @@ def rules_angular_dependencies():
 
     #
     # Download Bazel toolchain dependencies as needed by build actions
-    #
+    # Use a SHA to get fix for needing symlink_prefix during npm publishing
+    # TODO(alexeagle): updated to next tagged rules_typescript release
     _maybe(
         http_archive,
         name = "build_bazel_rules_nodejs",
-        url = "https://github.com/bazelbuild/rules_nodejs/archive/0.16.2.zip",
-        strip_prefix = "rules_nodejs-0.16.2",
+        url = "https://github.com/bazelbuild/rules_nodejs/archive/ee218e2a98b9f09ba07cecac8496a5918c47bc5d.zip",
+        strip_prefix = "rules_nodejs-ee218e2a98b9f09ba07cecac8496a5918c47bc5d",
     )
 
     _maybe(

packages/bazel/src/esm5.bzl

@@ -165,7 +165,7 @@ def flatten_esm5(ctx):
       ctx: the skylark rule execution context
 
     Returns:
-      list of flattened files
+      depset of flattened files
     """
     esm5_sources = []
     result = []
@@ -186,4 +186,4 @@ def flatten_esm5(ctx):
             template = f,
             substitutions = {},
         )
-    return result
+    return depset(result)