Bug 1926139 - Add clang version mappings for more versions of Xcode. r=firefox-build-system-reviewers,ahochheiden

Differential Revision: https://phabricator.services.mozilla.com/D226406

UltraBlame original commit: 6e266832c808b9ee79a354e2765735a77527a728

Author: marco-c

build/moz.configure/toolchain.configure

@@ -4098,6 +4098,27 @@ elif
 version
 <
 "
+14
+.
+3
+"
+:
+version
+=
+Version
+(
+"
+14
+.
+0
+.
+0
+"
+)
+elif
+version
+<
+"
 15
 .
 0
@@ -4108,26 +4129,47 @@ version
 Version
 (
 "
-14
+15
 .
 0
 .
 0
 "
 )
-else
+elif
+version
+<
+"
+16
+.
+0
+"
 :
 version
 =
 Version
 (
 "
-14
+16
+.
+0
 .
 0
+"
+)
+else
+:
+version
+=
+Version
+(
+"
+17
 .
 0
 .
+6
+.
 or
 .
 more