Added sudo ...

Author: dilawar

.github/workflows/build.yml

@@ -11,7 +11,7 @@ jobs:
     - uses: actions/checkout@v2
     - name: Install dependencies
       run: |
-        apt install libgsl-dev g++ cmake python3-devel python3-numpy
+        sudo apt install libgsl-dev g++ cmake python3-devel python3-numpy
     - name: configure
       run: mkdir -p build && cd build && cmake ..
     - name: make