chore(deps): security update (#15542)

Scan output:

Before update:
| OSV URL | CVSS | ECOSYSTEM | PACKAGE | VERSION | SOURCE |

|------------------------------|------|-----------|---------|---------|--------|
| https://osv.dev/GO-2026-4337 | | Go | stdlib | 1.24.12 | go.mod |

After update:


If a package is showing up in the scan but the script is not trying to
update it then it might be because there is no fixed version yet.

Signed-off-by: kumahq[bot] <110050114+kumahq[bot]@users.noreply.github.com>
Co-authored-by: kumahq[bot] <110050114+kumahq[bot]@users.noreply.github.com>

Author: kumahq[bot]

go.mod

@@ -1,6 +1,6 @@
 module github.com/kumahq/kuma/v2
 
-go 1.24.12
+go 1.24.13
 
 require (
 	cirello.io/pglock v1.16.0