Updates libressl files (#71)

#### 📖 Summary

- adds missing `vendor` files into build package.
- adds missing `openssl.conf` in build package.
- updates libressl / openssl to v3.5.3

#### 📑 Test Plan

> 💡 Select your test plan for the code changes.

- [x] Tested via Drone.io pipeline
- [ ] Custom test
- [ ] No test plan

##### Details / Justification

<!-- Add your test details or justification for missing tests here. -->

#### 📚 Additional Notes

- ⚡ See `v1.1.0-dev9` build
  - https://gitea.ocram85.com/OCram85/PSCredentialStore/releases/tag/v1.1.0-dev9
Co-authored-by: OCram85 <marco.blessing@googlemail.com>
Reviewed-on: #71

.gitattributes

@@ -21,4 +21,5 @@
 
 # Vendor resources config
 src/Vendor/libressl255/* filter=lfs diff=lfs merge=lfs -text
+src/Vendor/libressl/* filter=lfs diff=lfs merge=lfs -text
 *.pfx filter=lfs diff=lfs merge=lfs -text