[build] rpm tweaks

.github/workflows/rpmbuild.yml

@@ -20,7 +20,6 @@ jobs:
         uses: naveenrajm7/rpmbuild@master
         with:
           spec_file: "release/lnav.spec"
-          additional_repos: "['centos-release-scl']"
 
       - name: Upload artifact
         uses: actions/upload-artifact@v1.0.0

release/lnav.spec

@@ -34,7 +34,7 @@ Group:          System/Monitoring
 URL:            https://lnav.org
 # Git-Clone:    https://github.com/tstack/lnav.git
 # Source:       https://github.com/tstack/%{name}/archive/v%{version}.tar.gz#/%{name}-%{version}.tar.gz
-Source:         %{getenv:GITHUB_WORKSPACE}
+Source:         /github/home/rpmbuild/SOURCES/${name}-${version}.tar.gz
 # Source1:      lnav.desktop
 BuildRequires:  autoconf
 BuildRequires:  automake