Update reqwest requirement from 0.11 to 0.12

Updates the requirements on [reqwest](https://github.com/seanmonstar/reqwest) to permit the latest version.
- [Release notes](https://github.com/seanmonstar/reqwest/releases)
- [Changelog](https://github.com/seanmonstar/reqwest/blob/master/CHANGELOG.md)
- [Commits](seanmonstar/reqwest@v0.11.0...v0.12.4)

---
updated-dependencies:
- dependency-name: reqwest
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

crates/nsi-core/Cargo.toml

@@ -29,7 +29,7 @@ nightly = []
 ustr_handles = []
 
 [build-dependencies]
-reqwest = { version = "0.11", features = ["blocking"], optional = true }
+reqwest = { version = "0.12", features = ["blocking"], optional = true }
 
 [dependencies]
 dlopen2 = { version = "0.6", optional = true }