[release] Bump waiting for gnumbd to avoid broken tags.

NOTRY=true
TBR=hablich@chromium.org

Review URL: https://codereview.chromium.org/1591663002

Cr-Commit-Position: refs/heads/master@{#33321}

tools/release/common_includes.py

@@ -381,7 +381,7 @@ class GitInterface(VCInterface):
     # is the case for all automated merge and push commits - also no title is
     # the prefix of another title).
     commit = None
-    for wait_interval in [3, 7, 15, 35, 45, 60]:
+    for wait_interval in [5, 10, 20, 40, 60, 60]:
       self.step.Git("fetch")
       commit = self.step.GitLog(n=1, format="%H", grep=message, branch=remote)
       if commit: