[ci] use mbedtls 3.5.2 on mac

.github/workflows/main.yml

@@ -489,7 +489,7 @@ jobs:
         env:
           # For compatibility with macOS 10.13
           ZLIB_VERSION: 1.3.1
-          MBEDTLS_VERSION: 2.28.5
+          MBEDTLS_VERSION: 3.5.2
           PCRE2_VERSION: 10.42
         run: |
           set -ex