ci(mac): fix brew install (remove non-existent libsrtp formula)

Author: InnovateAsterisk

.github/workflows/build-binaries.yml

@@ -20,11 +20,12 @@ jobs:
       - uses: actions/setup-node@v4
         with:
           node-version: '22'
-      - name: Install system libraries (OpenSSL, Opus, libsrtp)
+      - name: Install system libraries (OpenSSL, Opus)
         if: runner.os == 'macOS'
         run: |
           brew update
-          brew install openssl@3 opus libsrtp pkg-config ninja cmake
+          # libsrtp formula is not available on macOS runners; omit it.
+          brew install openssl@3 opus pkg-config ninja cmake || true
       - name: Clone dependencies (no submodules)
         shell: bash
         run: |