workflows/codeql: Improve branch triggers and remove fail-fast

Co-authored-by: Mike McQuaid <mike@mikemcquaid.com>

.github/workflows/codeql-analysis.yml

@@ -2,9 +2,9 @@ name: "CodeQL"
 
 on:
  push:
-   branches: [ master ]
+   branches:
+     - master
  pull_request:
-   branches: [ master ]
 
 jobs:
  analyze:
@@ -15,9 +15,6 @@ jobs:
      contents: read
      security-events: write
 
-   strategy:
-     fail-fast: false
-
    steps:
    - name: Checkout repository
      uses: actions/checkout@v3