Bump MSRV to 1.81

Author: Kobzol

.github/workflows/ci.yml

@@ -3,7 +3,7 @@ on:
   push:
     branches:
       - master
-  pull_request: {}
+  pull_request: { }
   schedule:
     - cron: "0 12 * * 1" # Every Monday at 12:00 UTC
 
@@ -26,7 +26,7 @@ jobs:
           rustup default $RUST_TOOLCHAIN_VERSION
           rustup component add --toolchain $RUST_TOOLCHAIN_VERSION rustfmt clippy
         env:
-          RUST_TOOLCHAIN_VERSION: 1.75.0
+          RUST_TOOLCHAIN_VERSION: 1.81.0
 
       - uses: Swatinem/rust-cache@v2
         with:

collector/Cargo.toml

@@ -4,7 +4,7 @@ name = "collector"
 version = "0.1.0"
 edition = "2021"
 description = "Collects Rust performance data"
-rust-version = "1.75.0"
+rust-version = "1.81.0"
 
 [dependencies]
 anyhow = { workspace = true }