Fix CI

Author: adrien-berchet

.github/workflows/clang_format_check.yaml

@@ -4,7 +4,7 @@ on: [pull_request, push]
 jobs:
   build:
     name: clang-format-check
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     # Run on external PRs, but not internal PRs as they'll be run by the push
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository

.github/workflows/coverage_test.yaml

@@ -8,7 +8,7 @@ env:
 jobs:
   build:
     name: coverage-test
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
 
     # Run on external PRs, but not internal PRs as they'll be run by the push
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository

.github/workflows/docstring_check.yaml

@@ -4,7 +4,7 @@ on: [pull_request, push]
 jobs:
   build:
     name: docstring-check
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-latest
 
     # Run on external PRs, but not internal PRs as they'll be run by the push
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository

.github/workflows/publish-sdist-wheels.yml

@@ -17,7 +17,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-20.04, macos-11, windows-2022]
+        os: [ubuntu-latest, macos-11, windows-2022]
 
     steps:
       - uses: actions/checkout@v3