upstream: fix(systeminfo): make HTTPS URL scheme check case-insensitive for CA download (goharbor/harbor#23888)

Per RFC 3986, URL schemes are case-insensitive. In systeminfo controller, enableCADownload previously checked strings.HasPrefix(extURL, "https://") which failed when ExtEndpoint was configured with uppercase or mixed-case scheme (e.g., HTTPS://). Replace with strings.ToLower(extURL) to ensure case-insensitive scheme matching.

Fixes # NONE

Signed-off-by: Norway-02 <anshulkhetade02@gmail.com>

(cherry picked from commit 17b07334f943a32b94bf7306f46eb7348488e8ea)

Upstream-Commit: 17b07334f943a32b94bf7306f46eb7348488e8ea
Upstream-PR: goharbor/harbor#23888
Upstream-Author: @Norway-02
Cherry-Pick-Status: clean
Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Author: github-actions[bot]

src/controller/systeminfo/controller.go

@@ -126,7 +126,7 @@ func (c *controller) GetInfo(ctx context.Context, opt Options) (*Data, error) {
 		registryURL = l[0]
 	}
 	_, caStatErr := os.Stat(defaultRootCert)
-	enableCADownload := caStatErr == nil && strings.HasPrefix(extURL, "https://")
+	enableCADownload := caStatErr == nil && strings.HasPrefix(strings.ToLower(extURL), "https://")
 	res.Protected = &protectedData{
 		CurrentTime:                 time.Now(),
 		ReadOnly:                    config.ReadOnly(ctx),