Cleanup build config

.github/workflows/linux.yml

@@ -28,6 +28,11 @@ jobs:
             build_type: Debug
             std: 20
             install: sudo apt install g++-11
+          - cxx: g++-13
+            build_type: Release
+            std: 23
+            install: sudo apt install g++-13
+            shared: -DBUILD_SHARED_LIBS=ON
           - cxx: clang++-11
             build_type: Debug
             std: 17
@@ -40,25 +45,20 @@ jobs:
             fuzz: -DFMT_FUZZ=ON -DFMT_FUZZ_LINKMAIN=ON
             std: 17
             install: sudo apt install clang-11
-          #- cxx: clang++-13
-          #  build_type: Debug
-          #  std: 20
-          #- cxx: clang++-13
-          #  build_type: Debug
-          #  std: 20
-          #  cxxflags: -stdlib=libc++
-          #  install: sudo apt install libc++-13-dev libc++abi-13-dev
-          - cxx: g++-13
-            build_type: Release
-            std: 23
-            install: sudo apt install g++-13
-            shared: -DBUILD_SHARED_LIBS=ON
+          - cxx: clang++-14
+            build_type: Debug
+            std: 20
+          - cxx: clang++-14
+            build_type: Debug
+            std: 20
+            cxxflags: -stdlib=libc++
+            install: sudo apt install libc++-14-dev libc++abi-14-dev
 
     steps:
     - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
 
     - name: Set timezone
-      run: sudo timedatectl set-timezone 'Asia/Yekaterinburg'
+      run: sudo timedatectl set-timezone 'Europe/Minsk'
 
     - name: Install GCC 4.9
       run: |
@@ -94,7 +94,7 @@ jobs:
     - name: Install Clang 3.6
       run: |
         sudo apt update
-        sudo apt install libtinfo5 libobjc4
+        sudo apt install libtinfo5
         # https://code.launchpad.net/ubuntu/xenial/amd64/clang-3.6/1:3.6.2-3ubuntu2
         wget --no-verbose \
           http://launchpadlibrarian.net/230019046/libffi6_3.2.1-4_amd64.deb \
@@ -135,11 +135,12 @@ jobs:
       run: |
         # GitHub Actions caching proxy is at times unreliable
         # see https://github.com/actions/runner-images/issues/7048.
+        mirrors=/etc/apt/mirrors.txt
         printf 'http://azure.archive.ubuntu.com/ubuntu\tpriority:1\n' | \
-          sudo tee /etc/apt/mirrors.txt
-        curl http://mirrors.ubuntu.com/mirrors.txt | \
-          sudo tee --append /etc/apt/mirrors.txt
-        sudo sed -i 's~http://azure.archive.ubuntu.com/ubuntu/~mirror+file:/etc/apt/mirrors.txt~' \
+          sudo tee $mirrors
+        curl http://mirrors.ubuntu.com/mirrors.txt | sudo tee --append $mirrors
+        sudo sed -i \
+          "s~http://azure.archive.ubuntu.com/ubuntu/~mirror+file:$mirrors~" \
           /etc/apt/sources.list
 
     - name: Create build environment

.github/workflows/macos.yml

@@ -28,7 +28,7 @@ jobs:
     - uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
 
     - name: Set timezone
-      run: sudo systemsetup -settimezone 'Asia/Yekaterinburg'
+      run: sudo systemsetup -settimezone 'Europe/Minsk'
 
     - name: Select Xcode 14.3 (macOS 13)
       run: sudo xcode-select -s "/Applications/Xcode_14.3.app"