feat: power operator with right associativity #4550

Job	Run time
rules	4s
publish-web	0s
lint-megalinter / MegaLinter	12s
test-dotnet	0s
test-js	0s
test-java	0s
test-python	0s
test-php	0s
test-prqlc-c	0s
check-links-markdown	2s
test-rust-main	0s
test-elixir	0s
test-taskfile	0s
check-links-book	7s
measure-code-cov	2s
nightly	0s
build-devcontainer	0s
build-prqlc (ubuntu-latest, x86_64-unknown-linux-musl, default)	2s
build-prqlc (macos-14, aarch64-apple-darwin, default,test-dbs)	2s
test-deps-min-versions	0s
build-prqlc (windows-latest, x86_64-pc-windows-msvc, default)	2s
test-grammars	0s
test-msrv	0s
build-prqlc-c	0s
update-rust-toolchain	0s
build-web / build-web	2s
build-web / build-codemirror-demo	2s
test-rust (wasm32-unknown-unknown, ubuntu-latest, default) / test-rust	2s
test-rust (x86_64-unknown-linux-gnu, ubuntu-latest, default,test-dbs-external) / test-rust	2s
check-ok-to-merge	1s
create-issue-on-nightly-failure	1s
	43s

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