Update GitHub Actions workflows

Update GitHub Actions workflows to run tests on pull requests targeting master or main branches.

* Modify `.github/workflows/build.yml` to trigger on pull request events targeting master or main branches.
* Remove the `ouzi-dev/commit-status-updater` step from `.github/workflows/build.yml`.
* Remove reference to the `trying` branch in `.github/workflows/build.yml`.
* Modify `.github/workflows/codeql-analysis.yml` to trigger on pull request events targeting master or main branches.
* Add a step to update the commit status with the name "codeql-analysis" and status "success" in `.github/workflows/codeql-analysis.yml`.
* Remove reference to the `trying` branch in `.github/workflows/codeql-analysis.yml`.
* Delete `bors.toml` file.

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Author: jelford

.github/workflows/build.yml

@@ -2,7 +2,9 @@ name: Build and Test
 
 on:
   push:
-    branches: [ master, trying, staging ]
+    branches: [ master, staging ]
+  pull_request:
+    branches: [ master, main ]
 
 jobs:
   build:
@@ -18,7 +20,3 @@ jobs:
     - run: npm ci
     - run: npx web-ext lint
     - run: SELENIUM_BROWSER=${{ matrix.browser }} npm test
-    - uses: ouzi-dev/[email protected]
-      with:
-        name: "build"
-        status: "success"

.github/workflows/codeql-analysis.yml

@@ -2,7 +2,9 @@ name: "CodeQL"
 
 on:
   push:
-    branches: [ master, trying, staging ]
+    branches: [ master, staging ]
+  pull_request:
+    branches: [ master, main ]
   schedule:
     - cron: '16 23 * * 1'
 
@@ -35,3 +37,10 @@ jobs:
 
     - name: Perform CodeQL Analysis
       uses: github/codeql-action/analyze@v1
+
+    - name: Update commit status
+      uses: sibiraj-s/action-commit-status@v2
+      with:
+        state: 'success'
+        context: 'codeql-analysis'
+        description: 'CodeQL analysis completed successfully'