Uprev Rust toolchain pins to 1.95.0 (#24684)

## Summary
- Bump the workspace Rust toolchain from `1.93.0` to `1.95.0` across
Cargo, Bazel, CI, release workflows, devcontainers, and the Codex
environment config.
- Refresh `MODULE.bazel.lock` so the Bazel Rust toolchain artifacts
match the new version.
- Leave purpose-specific toolchains unchanged, including the
`argument-comment-lint` nightly and the upstream `rusty_v8` `1.91.0`
build pin.
- Includes fixes for new lints from `just fix` and a few codex-authored
fixes for lints without a suggestion.

codex-rs/tui/src/chatwidget/protocol.rs

@@ -332,10 +332,8 @@ impl ChatWidget {
                 reasoning_effort,
                 agents_states,
             }),
-            ThreadItem::EnteredReviewMode { review, .. } => {
-                if !from_replay {
-                    self.enter_review_mode_with_hint(review, /*from_replay*/ false);
-                }
+            ThreadItem::EnteredReviewMode { review, .. } if !from_replay => {
+                self.enter_review_mode_with_hint(review, /*from_replay*/ false);
             }
             _ => {}
         }