chore(deps): bump jsii-spec from 0.20.3 to 0.20.5 (#5008)

Bumps [jsii-spec](https://github.com/aws/jsii/tree/HEAD/packages/jsii-spec) from 0.20.3 to 0.20.5.
- [Release notes](https://github.com/aws/jsii/releases)
- [Changelog](https://github.com/aws/jsii/blob/master/packages/jsii-spec/CHANGELOG.md)
- [Commits](https://github.com/aws/jsii/commits/v0.20.5/packages/jsii-spec)

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

tools/awslint/package.json

@@ -20,7 +20,7 @@
     "colors": "^1.4.0",
     "fs-extra": "^8.1.0",
     "jsii-reflect": "^0.20.3",
-    "jsii-spec": "^0.20.3",
+    "jsii-spec": "^0.20.5",
     "yargs": "^14.2.0"
   },
   "devDependencies": {