Fixed brew link step for pkgconf

Author: filipecosta90

.github/workflows/ci.yml

@@ -119,6 +119,7 @@ jobs:
           source $HOME/.bash_profile
           /opt/homebrew/opt/[email protected]/bin/c_rehash
         fi
+        brew unlink [email protected] || true
         brew link --overwrite pkgconf
     - name: Build
       run: autoreconf -ivf && PKG_CONFIG_PATH=`brew --prefix openssl@${{ matrix.openssl }}`/lib/pkgconfig ./configure && make
@@ -133,6 +134,7 @@ jobs:
     - name: Install dependencies
       run:  |
         brew install autoconf automake libtool libevent pkg-config
+        brew unlink [email protected] || true
         brew link --overwrite pkgconf
     - name: Install openssl v1.0.2
       run: brew install rbenv/tap/[email protected]