also add an action for the compiler installation

.github/workflows/install-compiler-ubuntu/action.yml

@@ -0,0 +1,43 @@
+name: "Install various versions of gcc and clang"
+description: "dummy description"
+inputs:
+  compiler:
+    description: "Must be `gcc` or `clang`"
+    required: true
+  compiler-version:
+    description: "the version of the compiler (must be major version)"
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: Add PPA for GCC
+      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update
+      shell: bash
+      if :  inputs.compiler == 'gcc'
+
+    - name: Install gcc 11
+      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-11 g++-11
+      if :  inputs.compiler == 'gcc' && inputs.compiler-version == 11
+      shell: bash
+    - name: Install gcc 12
+      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-12 g++-12
+      if :  inputs.compiler == 'gcc' && inputs.compiler-version == 12
+      shell: bash
+    - name: Install gcc 13
+      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-13 g++-13
+      if :  inputs.compiler == 'gcc' && inputs.compiler-version == 13
+      shell: bash
+    - name: Install clang
+      # The sed command fixes a bug in `llvm.sh` in combination with the latest version of
+      # `apt-key`. Without it the GPG key for the llvm repository is downloaded but deleted
+      # immediately after.
+      run:  |
+        wget https://apt.llvm.org/llvm.sh
+        sudo chmod +x llvm.sh
+        sed   's/apt-key del/echo/' llvm.sh -iy
+        sudo ./llvm.sh ${{inputs.compiler-version}}
+        sudo apt install -y clang-${{inputs.compiler-version}}
+      if :  inputs.compiler == 'clang'
+      shell: bash
+# TODO<joka921> Add assertion for unsupported compiler version.

.github/workflows/install-dependencies-ubuntu/action.yml

@@ -12,3 +12,6 @@ runs:
     - name: Install boost from PPa
       run: sudo add-apt-repository -y ppa:mhier/libboost-latest && sudo apt update && sudo apt install -y libboost1.81-all-dev libboost-url1.81-dev
       shell: bash
+    - name: Install python packages for E2E tests
+      run: sudo apt-get install python3-yaml unzip pkg-config python3-icu
+      shell: bash

.github/workflows/native-build.yml

@@ -60,31 +60,13 @@ jobs:
     - uses: actions/checkout@v3
       with:
           submodules: 'recursive'
-    - name: install-dependencies
+    - name: Install dependencies
       uses: ./.github/workflows/install-dependencies-ubuntu
-    - name: Install gcc 11
-      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-11 g++-11
-      if :  matrix.compiler == 'gcc' && matrix.compiler-version == 11
-    - name: Install gcc 12
-      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-12 g++-12
-      if :  matrix.compiler == 'gcc' && matrix.compiler-version == 12
-
-    - name: Install gcc 13
-      run : sudo add-apt-repository ppa:ubuntu-toolchain-r/test && sudo apt update && sudo apt install -y gcc-13 g++-13
-      if :  matrix.compiler == 'gcc' && matrix.compiler-version == 13
-
-    - name: Install clang
-      # The sed command fixes a bug in `llvm.sh` in combination with the latest version of
-      # `apt-key`. Without it the GPG key for the llvm repository is downloaded but deleted
-      # immediately after.
-      run:  |
-        wget https://apt.llvm.org/llvm.sh
-        sudo chmod +x llvm.sh
-        sed   's/apt-key del/echo/' llvm.sh -iy
-        sudo ./llvm.sh ${{matrix.compiler-version}}
-        sudo apt install -y clang-${{matrix.compiler-version}}
-      if :  matrix.compiler == 'clang'
-
+    - name: Install compiler
+      uses: ./.github/workflows/install-compiler-ubuntu
+      with:
+        compiler: matrix.compiler
+        compiler-version: matrix.compiler-version
     - name: Python dependencies
       run: sudo apt-get install python3-yaml unzip pkg-config python3-icu