fix: use bracket notation for JSONPath keys with special characters

Author: gounthar

updatecli/updatecli.d/devcontainer.yaml

@@ -44,7 +44,7 @@ targets:
     sourceid: dockerLatestMinor
     spec:
       file: .devcontainer/devcontainer.json
-      key: '$.features."ghcr.io/devcontainers/features/docker-in-docker:2".version'
+      key: '$.features["ghcr.io/devcontainers/features/docker-in-docker:2"].version'
     transformers:
       - trimprefix: v
       - addprefix: v
@@ -56,7 +56,7 @@ targets:
     sourceid: githubcliLatestMinor
     spec:
       file: .devcontainer/devcontainer.json
-      key: '$.features."ghcr.io/devcontainers/features/github-cli:1".version'
+      key: '$.features["ghcr.io/devcontainers/features/github-cli:1"].version'
     transformers:
       - trimprefix: v
       - addprefix: v