Add empty permission blocks

As requested by zizmor.

Author: oschwald

.github/workflows/clang-addresssanitizer.yml

@@ -6,6 +6,8 @@ on:
   schedule:
     - cron: '53 3 * * SUN'
 
+permissions: {}
+
 jobs:
   addresssanitizer:
     name: Clang AddressSanitizer

.github/workflows/clang-analyzer.yml

@@ -6,6 +6,8 @@ on:
   schedule:
     - cron: '45 3 * * SUN'
 
+permissions: {}
+
 jobs:
   run:
     name: "Clang Static Analysis"

.github/workflows/lint.yml

@@ -6,6 +6,8 @@ on:
   schedule:
     - cron: '45 3 * * SUN'
 
+permissions: {}
+
 jobs:
   run:
     runs-on: ubuntu-latest

.github/workflows/test.yml

@@ -6,6 +6,8 @@ on:
   schedule:
     - cron: '45 3 * * SUN'
 
+permissions: {}
+
 jobs:
   run:
     runs-on: ${{ matrix.operating-system }}