Prepare for rust stable 1.60 (#11138)

* Prepare for rust stable 1.59

Besides preparing the UI tests this also adds a new script update-rust-stable.sh script for
simplifying the update of a rust stable version. This script will run all UI tests for the new
rust stable version and updating the expected output.

* Ensure we run the UI tests in CI

* use staging ci image

* More test updates

* Unignore test (#11097)

* empty commit for pipeline rerun

* empty commit for pipeline rerun

* Try to make clippy happy

* More clippy fixes

* FMT

* ci image production

Co-authored-by: alvicsam <alvicsam@gmail.com>
Co-authored-by: Alexander Samusev <41779041+alvicsam@users.noreply.github.com>

substrate/.maintain/update-rust-stable.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+#
+# Script for updating the UI tests for a new rust stable version.
+#
+# It needs to be called like this:
+#
+# update-rust-stable.sh 1.61
+#
+# This will run all UI tests with the rust stable 1.61. The script
+# requires that rustup is installed.
+set -e
+
+if [ "$#" -ne 1 ]; then
+	echo "Please specify the rust version to use. E.g. update-rust-stable.sh 1.61"
+	exit
+fi
+
+RUST_VERSION=$1
+
+if ! command -v rustup &> /dev/null
+then
+	echo "rustup needs to be installed"
+	exit
+fi
+
+rustup install $RUST_VERSION
+rustup component add rust-src --toolchain $RUST_VERSION
+
+# Ensure we run the ui tests
+export RUN_UI_TESTS=1
+# We don't need any wasm files for ui tests
+export SKIP_WASM_BUILD=1
+# Let trybuild overwrite the .stderr files
+export TRYBUILD=overwrite
+
+# Run all the relevant UI tests
+#
+# Any new UI tests in different crates need to be added here as well.
+rustup run $RUST_VERSION cargo test -p sp-runtime-interface ui
+rustup run $RUST_VERSION cargo test -p sp-api-test ui
+rustup run $RUST_VERSION cargo test -p frame-election-provider-solution-type ui
+rustup run $RUST_VERSION cargo test -p frame-support-test ui