More retries when tagging in release scripts.

BUG=408523
LOG=n
TEST=script_test.py
TBR=tandrii@chromium.org

Review URL: https://codereview.chromium.org/697433003

Cr-Commit-Position: refs/heads/master@{#25055}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25055 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

tools/push-to-trunk/common_includes.py

@@ -408,7 +408,7 @@ class GitTagsOnlyMixin(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, 35]:
+    for wait_interval in [3, 7, 15, 35, 45, 60]:
       self.step.Git("fetch")
       commit = self.step.GitLog(n=1, format="%H", grep=message, branch=remote)
       if commit: