Bump ejs from 3.1.9 to 3.1.10 in /playground (#204)

Bumps [ejs](https://github.com/mde/ejs) from 3.1.9 to 3.1.10.
- [Release notes](https://github.com/mde/ejs/releases)
- [Commits](mde/ejs@v3.1.9...v3.1.10)

---
updated-dependencies:
- dependency-name: ejs
  dependency-type: indirect
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

playground/yarn.lock

@@ -3791,9 +3791,9 @@ ee-first@1.1.1:
   integrity sha512-WMwm9LhRUo+WUaRN+vRuETqG89IgZphVSNkdFgeb6sS/E4OrDIN7t48CAewSHXc6C8lefD8KKfr5vY61brQlow==
 
 ejs@^3.1.6:
-  version "3.1.9"
-  resolved "https://registry.yarnpkg.com/ejs/-/ejs-3.1.9.tgz#03c9e8777fe12686a9effcef22303ca3d8eeb361"
-  integrity sha512-rC+QVNMJWv+MtPgkt0y+0rVEIdbtxVADApW9JXrUVlzHetgcyczP/E7DJmWJ4fJCZF2cPcBk0laWO9ZHMG3DmQ==
+  version "3.1.10"
+  resolved "https://registry.yarnpkg.com/ejs/-/ejs-3.1.10.tgz#69ab8358b14e896f80cc39e62087b88500c3ac3b"
+  integrity sha512-UeJmFfOrAQS8OJWPZ4qtgHyWExa088/MtK5UEyoJGFH67cDEXkZSviOiKRCZ4Xij0zxI3JECgYs3oKx+AizQBA==
   dependencies:
     jake "^10.8.5"