fix(build): correct repository.url owner casing (TurboDocx) for npm provenance

npm provenance verification is case-sensitive and expects the package.json
repository.url to match the canonical GitHub slug TurboDocx/html-to-docx.
The lowercase turbodocx value caused publish to fail with E422
'Error verifying sigstore provenance bundle'.

Author: nicolasiscoding

package.json

@@ -100,7 +100,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/turbodocx/html-to-docx.git"
+    "url": "git+https://github.com/TurboDocx/html-to-docx.git"
   },
   "author": "TurboDocx, Inc.",
   "contributors": [