Use Ubuntu 22.04 in all jobs

Trying to fix "No module named 'poetry'"

Author: juhoinkinen

.github/workflows/cicd.yml

@@ -14,7 +14,7 @@ env:
 jobs:
 
   lint:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     name: lint with isort, Black & flake8
     steps:
     - uses: actions/checkout@v3
@@ -37,7 +37,7 @@ jobs:
         poetry run flake8
 
   test:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 15
     strategy:
       matrix:
@@ -96,7 +96,7 @@ jobs:
   publish-docker-latest:
     name: publish latest Docker image
     needs: [lint, test]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     timeout-minutes: 15
     if: github.event_name == 'push' && github.ref == 'refs/heads/main'
     steps:
@@ -123,7 +123,7 @@ jobs:
   publish-release:
     name: publish release
     needs: [lint, test]
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-22.04
     if: github.event_name == 'push' && contains(github.ref, 'refs/tags/')
     steps:
     - uses: actions/checkout@v3