More changelog fixes (#1092)

* add bot token since gh actions doesn't allow pushing to protected branch
* add a max for issues, since we keep getting rate limited
* add jrnl bot username to commit step
* change token for git repo

.github/workflows/changelog.yaml

@@ -10,10 +10,13 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
+        with:
+          token: ${{ secrets.JRNL_BOT_TOKEN }}
 
       - name: Check branch for new commits
         run: |
           git fetch origin
+          git fetch --tags origin
           BRANCH="${GITHUB_REF##*/}"
           if [[ $(git rev-parse "origin/$BRANCH") != $GITHUB_SHA ]]; then
             echo "BRANCH: $BRANCH"
@@ -56,6 +59,7 @@ jobs:
           excludeLabels: stale,wontfix
           excludeTagsRegex: '(alpha|beta|rc)'
           sinceTag: ${{ env.gittag }}
+          maxIssues: 150
           releaseUrl: https://pypi.org/project/jrnl/%s/
           verbose: false