build: allow ng_package patch to silently fail so that issue can be f…

…ixed in angular repo

angular/angular#32603 will be fixed in angular/angular#33607 but the fix breaks this patch which breaks the material-unit-test job on that PR (https://app.circleci.com/jobs/github/angular/angular/515946). This change is temporary so that #33607 can land in angular.

tools/bazel/postinstall-patches.js

@@ -63,7 +63,13 @@ searchAndReplace(
     'node_modules/@angular/compiler-cli/src/ngtsc/entry_point/src/logic.js');
 
 // Workaround for https://github.com/angular/angular/issues/32603.
-shelljs.cat(path.join(__dirname, './rollup_windows_arguments.patch')).exec('patch -p0');
+try {
+  shelljs.cat(path.join(__dirname, './rollup_windows_arguments.patch')).exec('patch -p0');
+} catch (_) {
+  // This is getting fixed in ng_rollup_bundle itself but due to the dependency sandwich
+  // between this repo and the material-unit-test job in the angular repo we need to add
+  // this try/catch here temporarily.
+}
 
 // Workaround for: https://hackmd.io/MlqFp-yrSx-0mw4rD7dnQQ?both. We only want to discard
 // the metadata of files in the bazel managed node modules. That way we keep the default