Bump cargo-fuzz in CI

Author: Mark-Simulacrum

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
     # Note that building with fuzzers requires nightly since it uses unstable
     # flags to rustc.
     - run: rustup update nightly && rustup default nightly
-    - run: cargo install cargo-fuzz --vers "^0.10"
+    - run: cargo install cargo-fuzz --vers "^0.11"
     - run: cargo fuzz build --dev
 
   rustfmt: