argocd: update ghcr.io/dexidp/dex Docker tag to v2.42.0

Author: renovate[bot]

argocd/kustomization.yaml

@@ -51,7 +51,7 @@ images:
   - name: quay.io/argoproj/argocd
     newTag: v2.14.2@sha256:018f6444077deb39eac7c549a0ffe68d75da71751dd19899e05d3b60e1c2476f
   - name: ghcr.io/dexidp/dex
-    newTag: v2.41.1@sha256:bc7cfce7c17f52864e2bb2a4dc1d2f86a41e3019f6d42e81d92a301fad0c8a1d
+    newTag: v2.42.0@sha256:1b4a6eee8550240b0faedad04d984ca939513650e1d9bd423502c67355e3822f
   - name: redis
     newTag: 7.2.0-alpine@sha256:fd5de2340bc46cbc2241975ab027797c350dec6fd86349e3ac384e3a41be6fee
   - name: viaductoss/ksops