Update workflows

Author: morzhovets

.github/workflows/clang.yml

@@ -548,12 +548,12 @@ jobs:
     - name: Bionic in Focal (x64)
       if: matrix.cont_ver == '20.04' && matrix.ubuntu_ver == '24.04'
       run: |
-        echo "deb http://ports.ubuntu.com/ bionic main universe" | tee -a /etc/apt/sources.list
+        echo "deb http://archive.ubuntu.com/ubuntu/ bionic main universe" | tee -a /etc/apt/sources.list
         apt-get update
     - name: Bionic in Focal (ARM64)
       if: matrix.cont_ver == '20.04' && matrix.ubuntu_ver == '24.04-arm'
       run: |
-        echo "deb http://archive.ubuntu.com/ubuntu/ bionic main universe" | tee -a /etc/apt/sources.list
+        echo "deb http://ports.ubuntu.com/ bionic main universe" | tee -a /etc/apt/sources.list
         apt-get update
     - name: Checkout
       uses: actions/checkout@v6

.github/workflows/gcc.yml

@@ -403,12 +403,12 @@ jobs:
     - name: Bionic in Focal (x64)
       if: matrix.cont_ver == '20.04' && matrix.ubuntu_ver == '24.04'
       run: |
-        echo "deb http://ports.ubuntu.com/ bionic main universe" | tee -a /etc/apt/sources.list
+        echo "deb http://archive.ubuntu.com/ubuntu/ bionic main universe" | tee -a /etc/apt/sources.list
         apt-get update
     - name: Bionic in Focal (ARM64)
       if: matrix.cont_ver == '20.04' && matrix.ubuntu_ver == '24.04-arm'
       run: |
-        echo "deb http://archive.ubuntu.com/ubuntu/ bionic main universe" | tee -a /etc/apt/sources.list
+        echo "deb http://ports.ubuntu.com/ bionic main universe" | tee -a /etc/apt/sources.list
         apt-get update
     - name: Checkout
       uses: actions/checkout@v6