Add pkgconf to gcc packages

Author: MSP-Greg

.github/dependabot.yml .github/workflows/dependabot.yml.github/dependabot.yml renamed to .github/workflows/dependabot.yml

@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-20.04, ubuntu-18.04, macos-10.15 ]
-        ruby: [ ruby-head, 2.7, 2.5, 2.2, jruby, truffleruby ]
+        ruby: [ ruby-head, '3.0', 2.7, 2.5, 2.2, jruby, truffleruby ]
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout

.github/workflows/ruby.yml

@@ -99,7 +99,7 @@ const updateGCC = async () => {
   // TODO: code for installing gcc 9.2.0-1 or 9.1.0-3
 
   msSt = grpSt(`Upgrading gcc for Ruby ${ruby.vers}`)
-  let gccPkgs = ['', 'binutils', 'crt', 'dlfcn', 'headers', 'libiconv', 'isl', 'make', 'mpc', 'mpfr', 'windows-default-manifest', 'libwinpthread', 'libyaml', 'winpthreads', 'zlib', 'gcc-libs', 'gcc']
+  let gccPkgs = ['', 'binutils', 'crt', 'dlfcn', 'headers', 'libiconv', 'isl', 'make', 'mpc', 'mpfr', 'pkgconf', 'windows-default-manifest', 'libwinpthread', 'libyaml', 'winpthreads', 'zlib', 'gcc-libs', 'gcc']
   execSync(`pacman.exe ${msys2Sync} --nodeps ${args} ${gccPkgs.join(pre)}`)
   grpEnd(msSt)