Bump mysql2 from 3.9.4 to 3.9.7 (#41823)

Bumps [mysql2](https://github.com/sidorares/node-mysql2) from 3.9.4 to 3.9.7.
- [Release notes](https://github.com/sidorares/node-mysql2/releases)
- [Changelog](https://github.com/sidorares/node-mysql2/blob/master/Changelog.md)
- [Commits](sidorares/node-mysql2@v3.9.4...v3.9.7)

---
updated-dependencies:
- dependency-name: mysql2
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: Chris Truter <chris@metabase.com>

package.json

@@ -261,7 +261,7 @@
     "mochawesome-report-generator": "^6.2.0",
     "mockdate": "^2.0.2",
     "mutationobserver-shim": "^0.3.7",
-    "mysql2": "^3.6.3",
+    "mysql2": "^3.9.7",
     "node-polyfill-webpack-plugin": "2.0.1",
     "pg": "^8.8.0",
     "postcss": "8.4.19",

yarn.lock

@@ -16058,10 +16058,10 @@ mutationobserver-shim@^0.3.7:
   resolved "https://registry.yarnpkg.com/mutationobserver-shim/-/mutationobserver-shim-0.3.7.tgz#8bf633b0c0b0291a1107255ed32c13088a8c5bf3"
   integrity sha512-oRIDTyZQU96nAiz2AQyngwx1e89iApl2hN5AOYwyxLUB47UYsU3Wv9lJWqH5y/QdiYkc5HQLi23ZNB3fELdHcQ==
 
-mysql2@^3.6.3:
-  version "3.6.3"
-  resolved "https://registry.yarnpkg.com/mysql2/-/mysql2-3.6.3.tgz#d478be7aa97ea675d92f079d072f5a45cb772902"
-  integrity sha512-qYd/1CDuW1KYZjD4tzg2O8YS3X/UWuGH8ZMHyMeggMTXL3yOdMisbwZ5SNkHzDGlZXKYLAvV8tMrEH+NUMz3fw==
+mysql2@^3.9.7:
+  version "3.9.7"
+  resolved "https://registry.yarnpkg.com/mysql2/-/mysql2-3.9.7.tgz#843755daf65b5ef08afe545fe14b8fb62824741a"
+  integrity sha512-KnJT8vYRcNAZv73uf9zpXqNbvBG7DJrs+1nACsjZP1HMJ1TgXEy8wnNilXAn/5i57JizXKtrUtwDB7HxT9DDpw==
   dependencies:
     denque "^2.1.0"
     generate-function "^2.3.1"