build(deps): Bump wealdtech/ethdo in /testutil/compose/static/vouch

Bumps wealdtech/ethdo from 1.30.0 to 1.35.3.

---
updated-dependencies:
- dependency-name: wealdtech/ethdo
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

testutil/compose/static/vouch/Dockerfile

@@ -1,4 +1,4 @@
-FROM wealdtech/ethdo:1.30.0 as ethdo
+FROM wealdtech/ethdo:1.35.3 as ethdo
 
 FROM attestant/vouch:1.7.5