checkout universal ctags via action

removes the need for installing git

Author: Vladimir Kotal

.github/workflows/build.yml

@@ -30,6 +30,11 @@ jobs:
         path: ~/.m2
         key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
         restore-keys: ${{ runner.os }}-m2
+    - name: Checkout Universal ctags
+      uses: actions/checkout@v2
+      with:
+        repository: universal-ctags/ctags
+        path: ctags
     - name: Install pre-requisites (Unix)
       if: runner.os == 'Linux' || runner.os == 'macOS'
       run: ./dev/before_install

dev/before_install

@@ -9,7 +9,6 @@ if [[ "$RUNNER_OS" == "Linux" ]]; then
 
 	sudo apt-get install -qq \
 	    cvs \
-	    git \
 	    mercurial \
 	    cssc \
 	    bzr \

dev/install-universal_ctags.sh

@@ -3,7 +3,6 @@
 #
 # Clone Universal ctags Github repository and compile from source.
 #
-git clone https://github.com/universal-ctags/ctags.git
 cd ctags
 ./autogen.sh
 ./configure && make && make install