Don't install geo tool; chunk images

.gitlab-ci.yml

@@ -19,6 +19,9 @@ variables:
   DOCKER_CERT_PATH: $DOCKER_TLS_CERTDIR/client
   RUST_LOG_STYLE: always
   BB_SIGNING_DRIVER: sigstore
+  BB_BUILD_CHUNKED_OCI: 'true'
+  BB_BUILD_CHUNKED_OCI_MAX_LAYERS: '128'
+  BB_BUILD_RECHUNK_CLEAR_PLAN: 'true'
   BB_BUILD_PUSH: 'true'
   CLICOLOR_FORCE: 1
   TAG: main
@@ -44,8 +47,6 @@ base-images:
   stage: base-images
   variables:
     BB_BUILD_CHUNKED_OCI_MAX_LAYERS: '64'
-    BB_BUILD_CHUNKED_OCI: 'true'
-    TAG: 704-sigstore-driver-doesnt-recursively-sign
   rules:
     # Run when any of the base recipes change
     - changes: