ci: Add libgpgme-dev dependency

Author: EXtremeExploit

.github/workflows/build.yml

@@ -25,7 +25,7 @@ jobs:
     - name: "Install dependencies"
       run: |
         sudo apt -y update
-        sudo apt -y install libgtk-3-dev libalpm-dev libarchive-dev libcurl4-openssl-dev
+        sudo apt -y install libgtk-3-dev libalpm-dev libarchive-dev libcurl4-openssl-dev libgpgme-dev
 
     - name: Configure CMake
       # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.