Bump execjs from 2.9.1 to 2.10.0

Bumps [execjs](https://github.com/rails/execjs) from 2.9.1 to 2.10.0.
- [Release notes](https://github.com/rails/execjs/releases)
- [Commits](rails/execjs@v2.9.1...v2.10.0)

---
updated-dependencies:
- dependency-name: execjs
  dependency-type: indirect
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Gemfile.lock

@@ -123,7 +123,7 @@ GEM
     erubi (1.13.0)
     ethon (0.16.0)
       ffi (>= 1.15.0)
-    execjs (2.9.1)
+    execjs (2.10.0)
     faraday (2.12.0)
       faraday-net_http (>= 2.0, < 3.4)
       json