Fixed brew link step for pkgconf

Author: filipecosta90

.github/workflows/ci.yml

@@ -125,7 +125,7 @@ jobs:
         if ! brew list --versions pkgconf > /dev/null; then
           brew install pkgconf
         fi
-        brew unlink pkg-config || true
+        brew unlink pkg-config@0.29.2 || true
         brew link --overwrite pkgconf
     - name: Build
       run: autoreconf -ivf && PKG_CONFIG_PATH=`brew --prefix openssl@${{ matrix.openssl }}`/lib/pkgconfig ./configure && make
@@ -143,7 +143,7 @@ jobs:
         if ! brew list --versions pkgconf > /dev/null; then
           brew install pkgconf
         fi
-        brew unlink pkg-config || true
+        brew unlink pkg-config@0.29.2 || true
         brew link --overwrite pkgconf
     - name: Install openssl v1.0.2
       run: brew install rbenv/tap/[email protected]