[ci] fix: install pcre for macOS workflow

Signed-off-by: Christopher Arndt <[email protected]>

Author: SpotlightKid

.github/workflows/build.yml

@@ -44,7 +44,7 @@ jobs:
       - name: Install dependency packages (jack)
         uses: ConorMacBride/install-package@v1
         with:
-          brew: jack
+          brew: jack pcre
           apt: libjack-jackd2-dev libpcre3-dev
           choco: jack
       - name: Update PATH (Windows)