Bump proj4 from 2.6.1 to 2.6.2

Bumps [proj4](https://github.com/proj4js/proj4js) from 2.6.1 to 2.6.2.
- [Release notes](https://github.com/proj4js/proj4js/releases)
- [Changelog](https://github.com/proj4js/proj4js/blob/master/changelog.md)
- [Commits](https://github.com/proj4js/proj4js/compare/2.6.1...2.6.2)

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

package-lock.json

@@ -9578,9 +9578,9 @@
       "dev": true
     },
     "proj4": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.6.1.tgz",
-      "integrity": "sha512-RP5EcrfrLcARy+Zjjz1wIeqZzZdPtQNl685asHcwdU/MQ/dvydmf1XWM4mgok6wPaNsXZ8IFrM4qadO3g46PiQ==",
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/proj4/-/proj4-2.6.2.tgz",
+      "integrity": "sha512-Pn0+HZtXb4JzuN8RR0VM7yyseegiYHbXkF+2FOdGpzRojcZ1BTjWxOh7qfp2vH0EyLu8pvcrhLxidwzgyUy/Gw==",
       "dev": true,
       "requires": {
         "mgrs": "1.0.0",