Ignore irrelevant CVE-2025-22868

Trivy picks up a CVE that would require a go version bump to fix properly.
Govulncheck also sees the same but concludes that it does not affect us.
(Run with -show verbose to see it.)
Adding to the ignore list hence.

Signed-off-by: Lennart Jern <[email protected]>

Author: lentzi90

.trivyignore

@@ -2,3 +2,4 @@
 # According to govulncheck we are not using code that is affected by them anyway
 CVE-2025-22870
 CVE-2025-22872
+CVE-2025-22868