[Rust] Update reqwest dependency to 0.13 with query and form features

Update the Rust client generator template to use reqwest 0.13 instead
of 0.12, as requested in issue #22621.

In reqwest 0.13, the `query()` and `form()` methods have been moved
behind feature flags and are disabled by default. Since the generated
Rust clients extensively use both methods, these features must be
explicitly enabled.

Changes:
- Updated all reqwest dependencies from ^0.12 to ^0.13
- Added "query" and "form" to reqwest feature flags for all variants:
  - Blocking client configuration
  - Async client with file stream support
  - Async client without file stream
  - Reqwest-trait variant
- Updated reqwest-middleware features for consistency

This maintains full backward compatibility as only the dependency
version and features change. The API surface of generated code
remains identical.

Fixes #22621

Author: emilbonnek

modules/openapi-generator/src/main/resources/rust/Cargo.mustache

@@ -66,19 +66,19 @@ secrecy = "0.8.0"
 {{/withAWSV4Signature}}
 {{#reqwest}}
 {{^supportAsync}}
-reqwest = { version = "^0.12", default-features = false, features = ["json", "blocking", "multipart"] }
+reqwest = { version = "^0.13", default-features = false, features = ["json", "blocking", "multipart", "query", "form"] }
 {{#supportMiddleware}}
-reqwest-middleware = { version = "^0.4", features = ["json", "blocking", "multipart"] }
+reqwest-middleware = { version = "^0.4", features = ["json", "multipart"] }
 {{/supportMiddleware}}
 {{/supportAsync}}
 {{#supportAsync}}
 {{#useAsyncFileStream}}
 tokio = { version = "^1.46.0", features = ["fs"] }
 tokio-util = { version = "^0.7", features = ["codec"] }
-reqwest = { version = "^0.12", default-features = false, features = ["json", "multipart", "stream"] }
+reqwest = { version = "^0.13", default-features = false, features = ["json", "multipart", "stream", "query", "form"] }
 {{/useAsyncFileStream}}
 {{^useAsyncFileStream}}
-reqwest = { version = "^0.12", default-features = false, features = ["json", "multipart"] }
+reqwest = { version = "^0.13", default-features = false, features = ["json", "multipart", "query", "form"] }
 {{/useAsyncFileStream}}
 {{#supportMiddleware}}
 reqwest-middleware = { version = "^0.4", features = ["json", "multipart"] }
@@ -97,7 +97,7 @@ rustls-tls = ["reqwest/rustls-tls"]
 {{/reqwest}}
 {{#reqwestTrait}}
 async-trait = "^0.1"
-reqwest = { version = "^0.12", default-features = false, features = ["json", "multipart", "stream"] }
+reqwest = { version = "^0.13", default-features = false, features = ["json", "multipart", "stream", "query", "form"] }
 {{#supportMiddleware}}
 reqwest-middleware = { version = "^0.4", features = ["json", "multipart"] }
 {{/supportMiddleware}}