Bump ts-loader from 6.2.2 to 7.0.0

Bumps [ts-loader](https://github.com/TypeStrong/ts-loader) from 6.2.2 to 7.0.0.
- [Release notes](https://github.com/TypeStrong/ts-loader/releases)
- [Changelog](https://github.com/TypeStrong/ts-loader/blob/master/CHANGELOG.md)
- [Commits](https://github.com/TypeStrong/ts-loader/compare/v6.2.2...v7.0.0)

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

package-lock.json

@@ -5527,9 +5527,9 @@
             "dev": true
         },
         "ts-loader": {
-            "version": "6.2.2",
-            "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-6.2.2.tgz",
-            "integrity": "sha512-HDo5kXZCBml3EUPcc7RlZOV/JGlLHwppTLEHb3SHnr5V7NXD4klMEkrhJe5wgRbaWsSXi+Y1SIBN/K9B6zWGWQ==",
+            "version": "7.0.0",
+            "resolved": "https://registry.npmjs.org/ts-loader/-/ts-loader-7.0.0.tgz",
+            "integrity": "sha512-qq9iPK235Xf/uPS1I72CIwB8qpbW0rys3entnXO+rIo2km50lMmeHKCNn1m047W6Sk4kceF6n5NWEnq/V8xdYQ==",
             "dev": true,
             "requires": {
                 "chalk": "^2.3.0",