Update Rust crate reqwest to 0.11.18 (#1895)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [reqwest](https://github.com/seanmonstar/reqwest) | dependencies | patch | `0.11.17` -> `0.11.18` |

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### Release Notes

<details>
<summary>seanmonstar/reqwest</summary>

### [`v0.11.18`](https://github.com/seanmonstar/reqwest/blob/HEAD/CHANGELOG.md#v01118)

[Compare Source](seanmonstar/reqwest@v0.11.17...v0.11.18)

-   Fix `RequestBuilder::json()` method from overriding a previously set `content-type` header. An existing value will be left in place.
-   Upgrade internal dependencies for rustls and compression.

</details>

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Reviewed-on: https://codeberg.org/Calciumdibromid/CaBr2/pulls/1895
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crates/search/Cargo.toml

@@ -19,7 +19,7 @@ lazy_static = "1.4.0"
 log = "0.4.19"
 quick-xml = { version = "0.28.2", optional = true, features = ["serialize"] }
 regex = { version = "1.8.4", optional = true }
-reqwest = { version = "0.11.17", features = ["deflate", "gzip", "json", "native-tls"], default-features = false, optional = true }
+reqwest = { version = "0.11.18", features = ["deflate", "gzip", "json", "native-tls"], default-features = false, optional = true }
 serde = { version = "1.0.162", features = ["derive"] }
 serde_json = "1.0.96"
 structopt = { version = "0.3.26", optional = true }