perf(formatters): hoist SCP git URL regex to package level in IsValidGitURL

Move regexp.MustCompile for SCP-style git URLs out of IsValidGitURL
so the pattern is compiled once at init instead of on every call.

Signed-off-by: Matías Insaurralde <matias@insaurral.de>

Author: matiasinsaurralde

formatters/sarif/sarif.go

@@ -16,6 +16,8 @@ import (
 	"github.com/owenrumney/go-sarif/v2/sarif"
 )
 
+var sshPattern = regexp.MustCompile(`^[a-zA-Z0-9_-]+@[a-zA-Z0-9._-]+:[a-zA-Z0-9/._-]+$`)
+
 func NewFormat(out io.Writer, version string) *Format {
 	return &Format{
 		out:     out,
@@ -196,6 +198,5 @@ func IsValidGitURL(gitURL string) bool {
 		return parsedURL.Host != "" && parsedURL.Path != ""
 	}
 
-	sshPattern := regexp.MustCompile(`^[a-zA-Z0-9_-]+@[a-zA-Z0-9._-]+:[a-zA-Z0-9/._-]+$`)
 	return sshPattern.MatchString(gitURL)
 }