Remove Goerli support (#5770)

* Delete Goerli

* Generate validator manager test vectors

* Fix newlines in CLI docs

* Fix deposit-cli tests

* Run web3signer tests for Holesky from Bellatrix

* Fix mainnet bellatrix web3signer test

* Merge remote-tracking branch 'origin/unstable' into rm-goerli

* Fix snafu

testing/network_testing/README.md

@@ -50,11 +50,11 @@ $ cargo build --release --bin lighthouse --features network/disable-backfill
 
 Once built, it can run via checkpoint sync on any network, making sure we point to our mock-el
 
-Prater testnet:
+Holesky testnet:
 
 ```
-$ lighthouse --network prater bn --execution-jwt /tmp/mockel.jwt --checkpoint-sync-url
-https://prater.checkpoint.sigp.io --execution-endpoint http://localhost:8551
+$ lighthouse --network holesky bn --execution-jwt /tmp/mockel.jwt --checkpoint-sync-url
+https://holesky.checkpoint.sigp.io --execution-endpoint http://localhost:8551
 ```
 
 Mainnet:

testing/web3signer_tests/src/lib.rs

@@ -901,13 +901,14 @@ mod tests {
     }
 
     #[tokio::test]
-    async fn prater_base_types() {
-        test_base_types("prater", 4246).await
+    async fn mainnet_bellatrix_types() {
+        test_bellatrix_types("mainnet", 4244).await
     }
 
     #[tokio::test]
-    async fn prater_altair_types() {
-        test_altair_types("prater", 4247).await
+    async fn holesky_bellatrix_types() {
+        // web3signer does not support forks prior to Bellatrix on Holesky
+        test_bellatrix_types("holesky", 4247).await
     }
 
     #[tokio::test]