LibRegex: Change a couple function parameters to east-const

Automatically done by clang-format-17 (and clang-format-16 leaves these
alone afterwards).

Tests/LibRegex/Regex.cpp

@@ -14,12 +14,12 @@
 #include <LibRegex/RegexMatcher.h>
 #include <stdio.h>
 
-static ECMAScriptOptions match_test_api_options(const ECMAScriptOptions options)
+static ECMAScriptOptions match_test_api_options(ECMAScriptOptions const options)
 {
     return options;
 }
 
-static PosixOptions match_test_api_options(const PosixOptions options)
+static PosixOptions match_test_api_options(PosixOptions const options)
 {
     return options;
 }