fix(deps): MSRV bump rust to 1.91

required by release-plz

Author: davidB

.mise.toml

@@ -15,7 +15,7 @@ OTEL_TRACES_SAMPLER = "always_on"
 # ]
 
 [tools]
-rust = { version = "1.88.0", profile = "minimal", components = "rustfmt,clippy" }  # the rust tool stack (with cargo, fmt, clippy) to build source
+rust = { version = "1.91.0", profile = "minimal", components = "rustfmt,clippy" }  # the rust tool stack (with cargo, fmt, clippy) to build source
 grpcurl = "1.9"
 protoc = "34.0"
 # grpc-health-probe = "*"

Cargo.toml

@@ -14,7 +14,7 @@ exclude = ["target"]
 [workspace.package]
 version = "0.32.0"
 edition = "2024"
-rust-version = "1.88.0"
+rust-version = "1.91.0"
 homepage = "https://github.com/davidB/tracing-opentelemetry-instrumentation-sdk"
 repository = "https://github.com/davidB/tracing-opentelemetry-instrumentation-sdk"
 license = "CC0-1.0"

rust-toolchain.toml

@@ -1,2 +1,2 @@
 [toolchain]
-channel = "1.88.0"
+channel = "1.91.0"