Everywhere: Fix even more typos

Author: https://github.com/szepeviktor
Commit: 1c01e183b7
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/5974
Reviewed-by: https://github.com/gmta ✅

Tests/LibURL/TestURLPatternConstructorStringParser.cpp

@@ -143,7 +143,7 @@ TEST_CASE(data_url)
     EXPECT_EQ(result.base_url, OptionalNone {});
 }
 
-TEST_CASE(non_special_scheme_and_arbitary_hostname)
+TEST_CASE(non_special_scheme_and_arbitrary_hostname)
 {
     auto input = "foo://bar"_string;
     auto result = MUST(URL::Pattern::ConstructorStringParser::parse(input.code_points()));