ci: add workflow to build git@2.50.1

Author: mohasarc

.github/workflows/build-git.yml

@@ -0,0 +1,51 @@
+name: Build with Git 2.50.1
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      # 1) Check out your repo (this will use the default git first, which is fine)
+      - name: Checkout repository
+        uses: actions/checkout@v4
+      # 2) Install build dependencies needed for Git
+      - name: Install build dependencies for Git
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential \
+            libssl-dev \
+            libz-dev \
+            libcurl4-openssl-dev \
+            gettext \
+            asciidoc \
+            xmlto \
+            libexpat1-dev \
+            tar \
+            wget
+      # 3) Download Git 2.50.1 source tarball
+      - name: Download Git 2.50.1
+        run: |
+          wget https://mirrors.edge.kernel.org/pub/software/scm/git/git-2.50.1.tar.gz
+          tar -xzf git-2.50.1.tar.gz
+      # 4) Build and install Git 2.50.1 into /usr/local
+      - name: Build and install Git 2.50.1
+        run: |
+          cd git-2.50.1
+          make prefix=/usr/local all
+          sudo make prefix=/usr/local install
+      # 5) Make sure /usr/local/bin is preferred and show version
+      - name: Use Git 2.50.1 as default
+        shell: bash
+        run: |
+          echo “Using git at: $(command -v git)”
+          git --version
+      # 6) Your actual build / test step(s) go here
+      - name: Run build
+        run: |
+          # Example commands; replace with your real build
+          git --version
+          echo “Do your build here (npm/yarn/maven/whatever)”