Bump Ubuntu to 22.04 (#55)

Co-authored-by: repo-helper[bot] <74742576+repo-helper[bot]@users.noreply.github.com>

Author: repo-helper[bot]

.github/workflows/flake8.yml

@@ -16,7 +16,7 @@ permissions:
 jobs:
   Run:
     name: "Flake8"
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-22.04"
 
     steps:
       - name: Checkout 🛎️

.github/workflows/mypy.yml

@@ -20,7 +20,7 @@ jobs:
 
     strategy:
       matrix:
-        os: ['ubuntu-20.04', 'windows-2019']
+        os: ['ubuntu-22.04', 'windows-2019']
       fail-fast: false
 
     steps:

.github/workflows/python_ci_linux.yml

@@ -81,7 +81,7 @@ jobs:
 
   Coverage:
     needs: tests
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-22.04"
     steps:
       - name: Checkout 🛎️
         uses: "actions/checkout@v4"
@@ -130,7 +130,7 @@ jobs:
   Deploy:
     needs: tests
 
-    runs-on: "ubuntu-20.04"
+    runs-on: "ubuntu-22.04"
     steps:
       - name: Checkout 🛎️
         uses: "actions/checkout@v4"