Prepare to release 0.2.81

Cargo.toml

@@ -1,24 +1,20 @@
 [package]
 name = "libc"
-version = "0.2.80"
+version = "0.2.81"
 authors = ["The Rust Project Developers"]
 license = "MIT OR Apache-2.0"
 readme = "README.md"
 repository = "https://github.com/rust-lang/libc"
 homepage = "https://github.com/rust-lang/libc"
-documentation = "https://docs.rs/libc/0.2.79/libc/"
+documentation = "https://docs.rs/libc/"
 keywords = ["libc", "ffi", "bindings", "operating", "system" ]
 categories = ["external-ffi-bindings", "no-std", "os"]
 build = "build.rs"
-exclude = ["/ci/*", "/azure-pipelines.yml"]
+exclude = ["/ci/*", "/.github/*", "/.cirrus.yml", "/triagebot.toml"]
 description = """
 Raw FFI bindings to platform libraries like libc.
 """
 
-[badges]
-cirrus-ci = { repository = "rust-lang/libc", branch = "master" }
-azure-devops = { project = "rust-lang2/libc", pipeline = "rust-lang.libc%20(1)" }
-
 [dependencies]
 rustc-std-workspace-core = { version = "1.0.0", optional = true }