Meta: Allow building with Apple clang 14.x

We previously disregarded Apple clang entirely, since no released
version was able to succesfully build Lagom. Xcode 14 seems to have
all the features we need, as we haven't added any code that needs
trunk clang features in quite a while.

Meta/serenity.sh

@@ -154,7 +154,8 @@ is_supported_compiler() {
     local MAJOR_VERSION=""
     MAJOR_VERSION="${VERSION%%.*}"
     if $COMPILER --version 2>&1 | grep "Apple clang" >/dev/null; then
-        return 1
+        # Apple Clang version check
+        [ "$MAJOR_VERSION" -ge 14 ] && return 0
     elif $COMPILER --version 2>&1 | grep "clang" >/dev/null; then
         # Clang version check
         [ "$MAJOR_VERSION" -ge 13 ] && return 0
@@ -172,9 +173,6 @@ find_newest_compiler() {
         if ! command -v "$CANDIDATE" >/dev/null 2>&1; then
             continue
         fi
-        if $CANDIDATE --version 2>&1 | grep "Apple clang" >/dev/null; then
-            continue
-        fi
         if ! $CANDIDATE -dumpversion >/dev/null 2>&1; then
             continue
         fi