Bump @vercel/ncc from 0.28.5 to 0.28.6

Bumps [@vercel/ncc](https://github.com/vercel/ncc) from 0.28.5 to 0.28.6.
- [Release notes](https://github.com/vercel/ncc/releases)
- [Commits](https://github.com/vercel/ncc/compare/0.28.5...0.28.6)

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

package-lock.json

@@ -21,7 +21,7 @@
         "@types/jest": "^26.0.23",
         "@types/node": "^15.6.1",
         "@typescript-eslint/parser": "^4.25.0",
-        "@vercel/ncc": "^0.28.5",
+        "@vercel/ncc": "^0.28.6",
         "eslint": "^7.27.0",
         "eslint-plugin-github": "^4.1.3",
         "eslint-plugin-jest": "^24.3.6",
@@ -1550,9 +1550,9 @@
       }
     },
     "node_modules/@vercel/ncc": {
-      "version": "0.28.5",
-      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.28.5.tgz",
-      "integrity": "sha512-ZSwD4EDCon2EsnPZ2/Qcigx4N2DiuBLV/rDnF04giEPFuDeBeUDdnSTyYYfX8KNic/prrJuS1vUEmAOHmj+fRg==",
+      "version": "0.28.6",
+      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.28.6.tgz",
+      "integrity": "sha512-t4BoSSuyK8BZaUE0gV18V6bkFs4st7baumtFGa50dv1tMu2GDBEBF8sUZaKBdKiL6DzJ2D2+XVCwYWWDcQOYdQ==",
       "dev": true,
       "bin": {
         "ncc": "dist/ncc/cli.js"
@@ -10287,9 +10287,9 @@
       }
     },
     "@vercel/ncc": {
-      "version": "0.28.5",
-      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.28.5.tgz",
-      "integrity": "sha512-ZSwD4EDCon2EsnPZ2/Qcigx4N2DiuBLV/rDnF04giEPFuDeBeUDdnSTyYYfX8KNic/prrJuS1vUEmAOHmj+fRg==",
+      "version": "0.28.6",
+      "resolved": "https://registry.npmjs.org/@vercel/ncc/-/ncc-0.28.6.tgz",
+      "integrity": "sha512-t4BoSSuyK8BZaUE0gV18V6bkFs4st7baumtFGa50dv1tMu2GDBEBF8sUZaKBdKiL6DzJ2D2+XVCwYWWDcQOYdQ==",
       "dev": true
     },
     "@webassemblyjs/ast": {