build: add google-maps to published packages (#17557)

Author: jelbourn

src/google-maps/BUILD.bazel

@@ -22,6 +22,7 @@ ng_package(
     srcs = ["package.json"],
     entry_point = ":public-api.ts",
     entry_point_name = "google-maps",
+    tags = ["release-package"],
     deps = [":google-maps"],
 )
 

tools/release/release-output/release-packages.ts

@@ -2,6 +2,7 @@
 export const releasePackages = [
   'cdk',
   'material',
+  'google-maps',
   'youtube-player',
   'cdk-experimental',
   'material-experimental',