Revert "CI: use latest images (#2055)"

This reverts commit 0f2af1edfd493d28a399e64e91f54913b8547e8f, reversing
changes made to 90220323f3.

.github/workflows/autoconf.yml

 
         include:
           - os: ubuntu
-            osver: ubuntu-latest
+            osver: 22.04
           - os: macos
-            osver: macos-latest
-
+            osver: 12
+          
           - arch: i386
             archcflags: "-m32 -msse2 -mfpmath=sse"
 

.github/workflows/ci.yml

 
         include:
           - os: ubuntu
-            osver: ubuntu-latest
+            osver: 22.04
             sys: linux-gnu
           - os: macos
-            osver: macos-latest
+            osver: 12
             sys: apple-darwin21
           - os: macos
             compiler: clang
             sys: apple-darwin21.6.0
-
+          
           - compiler: clang
             compiler_flags: "-fdebug-default-version=4"
 
 
           - config: "release-dyn"
             settings: "-DCMAKE_BUILD_TYPE:STRING=RelWithDebInfo -DBUILD_SHARED_LIBS:BOOL=ON"
-
+          
         exclude:
           - os: macos
             arch: i386
             config: lsan
           - arch: riscv64
             config: lsan
-
+          
           # Thread sanitizer is partially unavailable
           - arch: i386
             config: tsan
     - name: test
       run: |
         ${{ matrix.config_env }} ${{ matrix.runenv }} cmake --build build --target tests
-        ${{ matrix.config_env }} ${{ matrix.runenv }} ctest --test-dir build -T test -j8 --output-on-failure
+        ${{ matrix.config_env }} ${{ matrix.runenv }} ctest --test-dir build -T test -j8 --output-on-failure

.github/workflows/windows.yml

       - name: make
         run: cmake --build build --config ${{ matrix.config }}
       - name: make check
-        run: ctest --test-dir build -T test -C ${{ matrix.config }} -j8 --output-on-failure
+        run: ctest --test-dir build -T test -C ${{ matrix.config }} -j8 --output-on-failure