[ci] zlib 1.3 is out, 1.2.13 is now 404

.github/workflows/main.yml

@@ -608,7 +608,7 @@ jobs:
       - name: Install dependencies
         env:
           # For compatibility with macOS 10.13
-          ZLIB_VERSION: 1.2.13
+          ZLIB_VERSION: 1.3
           MBEDTLS_VERSION: 2.25.0
           PCRE2_VERSION: 10.42
         run: |

extra/github-actions/build-mac.yml

@@ -1,7 +1,7 @@
 - name: Install dependencies
   env:
     # For compatibility with macOS 10.13
-    ZLIB_VERSION: 1.2.13
+    ZLIB_VERSION: 1.3
     MBEDTLS_VERSION: 2.25.0
     PCRE2_VERSION: 10.42
   run: |