build: track flaky tests for "nightly", add new secrets for tagging (#820)

Source-Author: Benjamin E. Coe <bencoe@google.com>
Source-Date: Wed Aug 26 14:28:22 2020 -0700
Source-Repo: googleapis/synthtool
Source-Sha: 8cf6d2834ad14318e64429c3b94f6443ae83daf9
Source-Link: googleapis/synthtool@8cf6d28

Author: yoshi-automation

packages/google-cloud-vision/synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/nodejs-vision.git",
-        "sha": "f26cd527ee604180e450b9916b682f60f84187ca"
+        "sha": "5a70489509f597c565b98c767a34a5805e528dbf"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "05de3e1e14a0b07eab8b474e669164dbd31f81fb"
+        "sha": "8cf6d2834ad14318e64429c3b94f6443ae83daf9"
       }
     }
   ],
@@ -78,7 +78,6 @@
     ".github/ISSUE_TEMPLATE/feature_request.md",
     ".github/ISSUE_TEMPLATE/support_request.md",
     ".github/PULL_REQUEST_TEMPLATE.md",
-    ".github/publish.yml",
     ".github/release-please.yml",
     ".github/workflows/ci.yaml",
     ".gitignore",