Bump nwmatcher from 1.4.1 to 1.4.4 in /generator-exercise

Bumps [nwmatcher](https://github.com/dperini/nwmatcher) from 1.4.1 to 1.4.4.
- [Release notes](https://github.com/dperini/nwmatcher/releases)
- [Commits](https://github.com/dperini/nwmatcher/commits)

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

generator-exercise/package-lock.json

@@ -3700,9 +3700,9 @@
       "integrity": "sha1-CXtgK1NCKlIsGvuHkDGDNpQaAR0="
     },
     "nwmatcher": {
-      "version": "1.4.1",
-      "resolved": "https://registry.npmjs.org/nwmatcher/-/nwmatcher-1.4.1.tgz",
-      "integrity": "sha1-eumwew6oBNt+JfBctf5Al9TklJ8=",
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/nwmatcher/-/nwmatcher-1.4.4.tgz",
+      "integrity": "sha512-3iuY4N5dhgMpCUrOVnuAdGrgxVqV2cJpM+XNccjR2DKOB1RUP0aA+wGXEiNziG/UKboFyGBIoKOaNlJxx8bciQ==",
       "dev": true
     },
     "oauth-sign": {