Update reqwest to 0.13

Aligns baibot's direct reqwest dep with the 0.13 copy that
async-openai/matrix-sdk/mxlink already pull, instead of the lone 0.12
copy kept alive only by the anthropic fork. 0.13 renamed the
`rustls-tls` feature to `rustls`; update the feature list accordingly.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Cargo.lock

@@ -329,7 +329,7 @@ dependencies = [
  "mxlink",
  "quick_cache",
  "regex",
- "reqwest 0.12.28",
+ "reqwest 0.13.3",
  "serde",
  "serde_json",
  "serde_yaml_ng",
@@ -1591,7 +1591,6 @@ dependencies = [
  "tokio",
  "tokio-rustls",
  "tower-service",
- "webpki-roots 1.0.7",
 ]
 
 [[package]]
@@ -3076,7 +3075,6 @@ dependencies = [
  "hyper-util",
  "js-sys",
  "log",
- "mime_guess",
  "percent-encoding",
  "pin-project-lite",
  "quinn",
@@ -3098,7 +3096,6 @@ dependencies = [
  "wasm-bindgen-futures",
  "wasm-streams 0.4.2",
  "web-sys",
- "webpki-roots 1.0.7",
 ]
 
 [[package]]