Fix: zod path in fork

[cau777]

Task: https://www.notion.so/Fix-instanceof-on-zod-9c21631b782043fdb67a42e8263a40dc?pvs=4

This PR removes the zod patch and uses a forked version instead.

npm publish --dry-run says this should be deployable:

npm publish --dry-run
npm WARN publish npm auto-corrected some errors in your package.json when publishing.  Please run "npm pkg fix" to address these errors.
npm WARN publish errors corrected:
npm WARN publish "repository.url" was normalized to "git+https://github.com/tianhuil/ts-mongo.git"
npm notice 
npm notice 📦  @tianhuil/[email protected]
npm notice === Tarball Contents === 
npm notice 11.4kB LICENSE.md                                     
npm notice 3.8kB  README.md                                      
npm notice 2.2kB  lib/cjs/collection.d.ts                        
[...]               
npm notice 2.4kB  package.json                                   
npm notice === Tarball Details === 
npm notice name:          @tianhuil/ts-mongo                      
npm notice version:       2.4.0                                   
npm notice filename:      tianhuil-ts-mongo-2.4.0.tgz             
npm notice package size:  35.4 kB                                 
npm notice unpacked size: 236.7 kB                                
npm notice shasum:        df19169d912bf0288e88b952f1a7adc76c137113
npm notice integrity:     sha512-koD6pyKdv+Frs[...]w3+nqP6ltwUYA==
npm notice total files:   203                                     
npm notice 
npm notice Publishing to https://registry.npmjs.org/ with tag latest and public access (dry-run)
+ @tianhuil/[email protected]