Fix issue link does not support quotes (#29484) (#29487)

Close #29484

![圖片](https://github.com/go-gitea/gitea/assets/30816317/b27e6e16-67e0-469c-8e04-30180c585890)

modules/references/references_test.go

@@ -429,6 +429,8 @@ func TestRegExp_issueNumericPattern(t *testing.T) {
 		"  #12",
 		"#12:",
 		"ref: #12: msg",
+		"\"#1234\"",
+		"'#1234'",
 	}
 	falseTestCases := []string{
 		"# 1234",
@@ -459,6 +461,8 @@ func TestRegExp_issueAlphanumericPattern(t *testing.T) {
 		"(ABC-123)",
 		"[ABC-123]",
 		"ABC-123:",
+		"\"ABC-123\"",
+		"'ABC-123'",
 	}
 	falseTestCases := []string{
 		"RC-08",