Target versioned Ubuntu.

Author: kdeldycke

.github/workflows/autofix.yaml

@@ -10,7 +10,7 @@ jobs:
 
   python:
     name: Format Python code and create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
         with:
@@ -43,7 +43,7 @@ jobs:
 
   json:
     name: Format JSON files and create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - name: Install linter
@@ -70,7 +70,7 @@ jobs:
 
   typos:
     name: Fix typos and create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - uses: sobolevn/[email protected]
@@ -91,7 +91,7 @@ jobs:
 
   images:
     name: Optimize images
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - uses: calibreapp/[email protected]
@@ -118,7 +118,7 @@ jobs:
 
   gitignore:
     name: Generate .gitignore and create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - name: Install git-extras package
@@ -145,7 +145,7 @@ jobs:
 
   mailmap:
     name: Update .mailmap and create a PR
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
         with:

.github/workflows/autolock.yaml

@@ -8,7 +8,7 @@ name: Autolock
 
 jobs:
   lock:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: dessant/[email protected]
         with:

.github/workflows/build.yaml

@@ -7,7 +7,7 @@ jobs:
 
   build:
     name: Build, check and publish package on release
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - uses: actions/[email protected]

.github/workflows/labels.yaml

@@ -10,7 +10,7 @@ jobs:
 
   labels:
     name: Sync labels
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - name: Sync labels

.github/workflows/lint.yaml

@@ -10,7 +10,7 @@ jobs:
 
   lint-python:
     name: Lint and check Python code
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - uses: actions/[email protected]
@@ -26,7 +26,7 @@ jobs:
 
   lint-yaml:
     name: Lint YAML files
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/[email protected]
       - uses: actions/[email protected]