- Check that alias is not the same as name of other field (it still can be the name of owning field/variant)
- Check that aliases are unique, i. e. two different fields does not use the same alias

Add checks for conflicts for aliases

pacify clippy

This step has been failing way more than reasonable across my various repos.

    With the provided path, there will be 1 file uploaded
    Artifact name is valid!
    Root directory input is valid!
    Attempt 1 of 5 failed with error: Request timeout: /twirp/github.actions.results.api.v1.ArtifactService/CreateArtifact. Retrying request in 3000 ms...
    Attempt 2 of 5 failed with error: Request timeout: /twirp/github.actions.results.api.v1.ArtifactService/CreateArtifact. Retrying request in 6029 ms...
    Attempt 3 of 5 failed with error: Request timeout: /twirp/github.actions.results.api.v1.ArtifactService/CreateArtifact. Retrying request in 8270 ms...
    Attempt 4 of 5 failed with error: Request timeout: /twirp/github.actions.results.api.v1.ArtifactService/CreateArtifact. Retrying request in 12577 ms...
    Error: Failed to CreateArtifact: Failed to make request after 5 attempts: Request timeout: /twirp/github.actions.results.api.v1.ArtifactService/CreateArtifact

Produce unreachable_patterns warning when deserialization names collide

Produce a separate warning for every colliding name

This reverts commit 951ca5a.

This reverts commit 5f9fffa.

Revert the colliding aliases hard error (PRs #2562 & #2853)