cmd/racebuild: add linux/loong64 support

cmd/watchflakes: only open issues bots that have been dead for 24-hours

main.star: set openbsd-386 as not low-capacity

main.star: finish upgrading openbsd-amd64 to OpenBSD 7.6

cmd/buildlet{,stage0}: use go version in go.mod via go.dev/doc/toolchain

main.star: don't hide openbsd-amd64_7.6 from presubmit

internal/relui: merge run+await Cloud Build tasks into 1 retryable task

internal/task: use relui service account instead of secret for git authn

cmd/buildlet: add linux-loong64 targets

devapp/owners: add hajimehoshi as x/mobile owner

devapp/owners: remove outdated x/mobile owner

build(deps): bump golang.org/x/net in /maintner/cmd/maintserve

cmd/watchflakes: add a simple heuristic to not post too many new issues

perf: fix homepage chart header links

main.star: limit scope of slow netbsd-arm host to go, net, sys

main.star: enable openbsd-amd64_7.6 for x/ repos

go.mod: update golang.org/x dependencies

internal/task: fix the issue showing diff between two identical version

devapp/owners: add cpu to crypto packages

internal/task: publish the release after asset upload

main.star: add openbsd-amd64_7.6

main.star: resolve soft merge conflict between CL 653075 and CL 649876

internal/gophers: update taking's email

devapp/owners: adjust taking ownership

internal/gophers: add shaojunyang

all: use a more straightforward return value

main.star: enable presubmit for internal vendor branches

cmd/makemac: check secret.InitFlagSupport error, don't use it in tests

internal/task: pull in git-generate fix for Windows