v3.3.0 (#3741)

## Issue Addressed

NA

## Proposed Changes

- Bump versions
- Pin the `nethermind` version since our method of getting the latest tags on `master` is giving us an old version (`1.14.1`).
- Increase timeout for execution engine startup.

## Additional Info

- [x] ~Awaiting further testing~

common/lighthouse_version/src/lib.rs

@@ -17,8 +17,8 @@ pub const VERSION: &str = git_version!(
         // NOTE: using --match instead of --exclude for compatibility with old Git
         "--match=thiswillnevermatchlol"
     ],
-    prefix = "Lighthouse/v3.2.1-",
-    fallback = "Lighthouse/v3.2.1"
+    prefix = "Lighthouse/v3.3.0-",
+    fallback = "Lighthouse/v3.3.0"
 );
 
 /// Returns `VERSION`, but with platform information appended to the end.