Update dependency google/go-containerregistry to v0.20.6

Author: renovate[bot]

home/.chezmoitemplates/aqua/aqua.yaml.tmpl

@@ -81,7 +81,7 @@ packages:
   - name: dbrgn/tealdeer@v1.6.1
   - name: ajeetdsouza/zoxide@v0.9.4
   - name: stedolan/jq@jq-1.6
-  - name: google/go-containerregistry@v0.20.0
+  - name: google/go-containerregistry@v0.20.6
   - name: twistedpair/google-cloud-sdk@483.0.0
   - name: uzimaru0000/tv@v0.7.0
   - name: hidetatz/kubecolor@v0.0.25