Run steps for valid issues only (microsoft#217596)

Author: bhavyaus

.github/workflows/on-open.yml

@@ -22,6 +22,7 @@ jobs:
           token: ${{secrets.VSCODE_ISSUE_TRIAGE_BOT_PAT}}
 
       - name: Run CopyCat (VSCodeTriageBot/testissues)
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/copycat
         with:
           appInsightsKey: ${{secrets.TRIAGE_ACTIONS_APP_INSIGHTS}}
@@ -30,6 +31,7 @@ jobs:
           repo: testissues
 
       - name: Run New Release
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/new-release
         with:
           label: new release
@@ -41,6 +43,7 @@ jobs:
           days: 5
 
       - name: Run Clipboard Labeler
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/regex-labeler
         with:
           appInsightsKey: ${{secrets.TRIAGE_ACTIONS_APP_INSIGHTS}}
@@ -49,6 +52,7 @@ jobs:
           comment: "It looks like you're using the VS Code Issue Reporter but did not paste the text generated into the created issue. We've closed this issue, please open a new one containing the text we placed in your clipboard.\n\nHappy Coding!"
 
       - name: Run Clipboard Labeler (Chinese)
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/regex-labeler
         with:
           appInsightsKey: ${{secrets.TRIAGE_ACTIONS_APP_INSIGHTS}}
@@ -58,6 +62,7 @@ jobs:
 
       # source of truth in ./english-please.yml
       - name: Run English Please
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/english-please
         with:
           token: ${{secrets.VSCODE_ISSUE_TRIAGE_BOT_PAT}}
@@ -69,6 +74,7 @@ jobs:
           translatorRequestedLabelColor: "c29cff"
             # source of truth in ./test-plan-item-validator.yml
       - name: Run Test Plan Item Validator
+        if: github.event.issue.user.login != 'ghost'
         uses: ./actions/test-plan-item-validator
         with:
           token: ${{secrets.VSCODE_ISSUE_TRIAGE_BOT_PAT}}