chore: switch from develop/dev to main/latest image tags (#434)

Co-authored-by: Jason Woltje <[email protected]>
Co-committed-by: Jason Woltje <[email protected]>

docker-compose.openbao.yml

@@ -14,7 +14,7 @@ services:
   # OpenBao Secrets Vault
   # ======================
   openbao:
-    image: git.mosaicstack.dev/mosaic/stack-openbao:${IMAGE_TAG:-dev}
+    image: git.mosaicstack.dev/mosaic/stack-openbao:${IMAGE_TAG:-latest}
     entrypoint: ["dumb-init", "--"]
     command: ["bao", "server", "-config=/openbao/config/config.hcl"]
     environment:
@@ -48,7 +48,7 @@ services:
   # Has built-in retry logic (polls OpenBao API for 60 seconds).
   # After init, runs an unseal watch loop to handle container restarts.
   openbao-init:
-    image: git.mosaicstack.dev/mosaic/stack-openbao:${IMAGE_TAG:-dev}
+    image: git.mosaicstack.dev/mosaic/stack-openbao:${IMAGE_TAG:-latest}
     command: /openbao/init.sh
     environment:
       VAULT_ADDR: http://openbao:8200