stop using ubuntu-latest as CI

It looks like the clang in the ubuntu-latest can't handle the
standard library libstdc++ in the same machine. Roll back to
ubuntu-22.04 to try to make the CI green.

.github/workflows/bazel.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   build:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/cmake.yml

@@ -18,7 +18,7 @@ jobs:
     # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
     # You can convert this to a matrix build if you need cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
 
     steps:
     - uses: actions/checkout@v2

.github/workflows/static.yml

@@ -26,7 +26,7 @@ jobs:
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
     steps:
       - name: Install
         run: sudo apt-get install doxygen graphviz