Bump dotnet-sdk from 9.0.302 to 9.0.303 in /nuget/helpers/lib/NuGetUpdater #7

Job	Run time
Updater	3m 13s
Lint	2m 24s
integration	3m 57s
ci (cargo, cargo, cargo)	11s
ci (bundler, bundler, bundler)	11s
ci (bun, bun, bun)	12s
ci (dotnet_sdk, dotnet_sdk, dotnet-sdk)	11s
ci (docker_compose, docker_compose, docker-compose)	11s
ci (devcontainers, devcontainers, devcontainers)	16s
ci (docker, docker, docker)	11s
ci (github_actions, github_actions, github-actions)	12s
ci (go_modules, go_module, gomod)	12s
ci (git_submodules, git_submodules, gitsubmodule)	13s
ci (gradle, gradle, gradle)	14s
ci (helm, helm, helm)	19s
ci (common, common, common)	1m 20s
ci (maven, maven, maven)	11s
ci (nuget, nuget, nuget)	46s
ci (npm_and_yarn, npm_and_yarn, npm)	17s
ci (pub, pub, pub)	13s
ci (python, python, pip)	12s
ci (python, python_slow, pip)	14s
ci (vcpkg, vcpkg, vcpkg)	17s
ci (swift, swift, swift)	11s
ci (uv, uv, uv)	18s
ci (elm, elm, elm)	11s
ci (rust_toolchain, rust_toolchain, rust-toolchain)	16s
ci (terraform, terraform, terraform)	11s
ci (composer, composer, composer)	11s
ci (bin, dry_run, common)	12s
ci (hex, hex, mix)	13s
	17m 20s

Provide feedback