fix(deps): update dependency @types/webpack-env to v1.18.6

Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

microsite/yarn.lock

@@ -3129,9 +3129,9 @@ __metadata:
   linkType: hard
 
 "@types/webpack-env@npm:^1.18.0":
-  version: 1.18.1
-  resolution: "@types/webpack-env@npm:1.18.1"
-  checksum: 3173c069763e51a96565d602af7e6dac9d772ae4aa6f26cac187cbf599a7f0b88f790b4b050b9dbdb0485daed3061b4a337863f3b8ce66f8a4e51f75ad387c6a
+  version: 1.18.6
+  resolution: "@types/webpack-env@npm:1.18.6"
+  checksum: 47aaea276f23b79c87b31db56a35bbbc1b00c4b74b0ae86586dead8f4da3a44401e8921f662d4eee609da9e63b51670703e28621c70799afae0291a6ea610c41
   languageName: node
   linkType: hard