Revert prost update (#7896)

Revert prost 0.13.1 -> 0.12.4 and generate code from protos

### Description of the change

#7888 Introduced a breaking change that broke the compilation of
`oci-catalog` module. At this moment, we cannot invest time in fixing
the issue so we are reverting that change.
<!-- Describe the scope of your change - i.e. what the change does. -->

### Benefits

`oci-catalog` module compiles again.
<!-- What benefits will be realized by the code change? -->

### Possible drawbacks

We are downgrading a dependency with all its consequences. 
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### Applicable issues

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#) -->

- fixes #

### Additional information

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request, mention that information here.-->

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Signed-off-by: Jesús Benito Calzada <[email protected]>

cmd/oci-catalog/Cargo.toml

@@ -14,7 +14,7 @@ clap = { version = "4.5", features = ["derive", "env"] }
 env_logger = "0.11"
 futures-core = "0.3"
 log = "0.4"
-prost = "0.13"
+prost = "0.12"
 reqwest = { version = "0.12", default-features = false, features = ["rustls-tls"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_json = "1.0"