chore: update MSRV to 1.88

`testcontainers` already were bumped

Author: DDtKey

Cargo.toml

@@ -4,7 +4,7 @@ version = "0.13.0"
 description = "Community maintained modules for Testcontainers for Rust"
 categories = ["development-tools::testing"]
 edition = "2021"
-rust-version = "1.82"
+rust-version = "1.88"
 repository = "https://github.com/testcontainers/testcontainers-rs-modules-community"
 keywords = ["docker", "testcontainers"]
 license = "MIT"