Remove "wait" before the "build and publish" step (#2164)

We've been seeing some issues with the release notes script lately that
need to be fixed. These failures block the pipeline and stop us from
moving forward to the (unrelated / unaffected) "build and publish"
steps.

pipelines/bazel-release.yml

@@ -509,8 +509,9 @@ steps:
       cd scripts/release
       python3 relnotes.py
 
-  - wait
-
+  - wait: ~
+    continue_on_failure: true
+
   - block: "Build and publish"
     if: build.branch !~ /pre/i