chore(deps): update reqwest requirement in /integrations/dav-server

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@v0.12.24...v0.12.28)

---
updated-dependencies:
- dependency-name: reqwest
  dependency-version: 0.12.28
  dependency-type: direct:production
...

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

Author: dependabot[bot]

core/Cargo.toml

@@ -313,7 +313,7 @@ libtest-mimic = "0.8"
 log = { workspace = true }
 logforth = { workspace = true }
 rand = { workspace = true }
-reqwest = "0.12.24"
+reqwest = "0.13.2"
 sha2 = { workspace = true }
 size = "0.5"
 tokio = { workspace = true, features = ["fs", "macros", "rt-multi-thread"] }