fix(deps): bump octocrab to 0.48.1 to fix macOS CI sandbox failure

The octocrab 0.48.0 build script called `cargo metadata` which attempted
to download crates during the build. This failed in Bazel's darwin-sandbox
because writes to ~/.cargo/registry are blocked.

octocrab 0.48.1 includes the fix: "don't fetch dependencies" (#828)

This resolves the "Test on macos-latest" CI failure:
  thread 'main' panicked at build.rs:15:10:
  failed to parse `cargo metadata`: Operation not permitted (os error 1)

Cherry-picked from dependabot PR #242.

Author: avrabe

tools/wizer_initializer/Cargo.lock

@@ -24,4 +24,4 @@ tokio = { version = "1.48", features = ["full"] }
 chrono = { version = "0.4", features = ["serde"] }
 futures-util = "0.3"
 tempfile = "3.23"
-octocrab = { version = "0.48.0", features = ["stream"] }
+octocrab = { version = "0.48.1", features = ["stream"] }