[CRE-1250] Usnet Docker Build Ctx and Filepath if 'CTF_*_IMAGE' env vars are used

[Tofel]

Why?

1. I believe that env var should take precedence over TOML.
2. It allow us to use same TOML configs that would normally build an image with existing images just by providing env vars.

Without this PR TOMLs configs that have docker build ctx/file set will fail, if CTF_CHAINLINK_IMAGE is used.

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Below is a summarization created by an LLM (gpt-4-0125-preview). Be mindful of hallucinations and verify accuracy.

Why

The changes ensure that if a Docker image is provided via environment variables for specific components, the Docker build context and file path are unset. This prevents conflicts and ensures that the provided image takes precedence over building a new one.

What

• framework/.changeset/v0.11.8.md
  • Added a changeset entry for version 0.11.8 mentioning the update regarding Docker build context and filepath changes when CTF_*_IMAGE environment variables are used.
• framework/components/jd/jd.go
  • Updated NewWithContext function to unset DockerContext and DockerFilePath if CTF_JD_IMAGE environment variable is set, ensuring the custom image is used without attempting to build a new one.
• framework/components/simple_node_set/node_set.go
  • In the sharedDBSetup function, updated to unset DockerContext and DockerFilePath for node specifications if CTF_CHAINLINK_IMAGE environment variable is set, aligning with the approach of using the specified image directly.