Merge pull request #538 from nais/bump_go_1_26_4

bump. Go 1.26.4

build: bump libs with security patches

build(deps): bump github.com/go-git/go-git/v5 from 5.16.5 to 5.19.1

Bumps [github.com/go-git/go-git/v5](https://github.com/go-git/go-git) from 5.16.5 to 5.19.1.
- [Release notes](https://github.com/go-git/go-git/releases)
- [Changelog](https://github.com/go-git/go-git/blob/main/HISTORY.md)
- [Commits](go-git/go-git@v5.16.5...v5.19.1)

---
updated-dependencies:
- dependency-name: github.com/go-git/go-git/v5
  dependency-version: 5.19.1
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>

feat: terminate agent on systray exit via Shutdown RPC

build: bump various vuldnerable dependencies

feat: update acceptable use policy

Merge pull request #524 from nais/Kyrremann-patch-1

ci: timestamp for sha tag

fix: log corret err when helper failes sync

fix: gitignore .opencode

build: bump protoc toolchain and regenerate protobuf files

Update protoc 29.4 -> 34.1, protoc-gen-go 1.36.6 -> 1.36.9,
protoc-gen-go-grpc 1.5.1 -> 1.6.1.