chore: add version consts for 3.8.1+3.9.0 #1057

	name: API Compatibility
	on:
	merge_group:
	push:
	branches:
	- main
	paths-ignore:
	- '*/.md'
	pull_request:
	branches:
	- "**"
	paths-ignore:
	- '*/.md'

	permissions:
	contents: read # for actions/checkout to fetch code

	jobs:
	apidiff:
	runs-on: ubuntu-latest
	if: github.base_ref
	steps:
	- name: Setup Go
	uses: actions/setup-go@0c52d547c9bc32b1aa3301fd7a9cb496313a4491 # v5.0.0
	with:
	go-version: 1.23.x
	- name: Add GOBIN to PATH
	run: echo "$(go env GOPATH)/bin" >>$GITHUB_PATH
	- name: Install apidiff cmd
	run: go install golang.org/x/exp/cmd/[email protected]
	- name: Checkout base code
	uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
	with:
	ref: ${{ github.base_ref }}
	path: "base"
	persist-credentials: false
	- name: Capture apidiff baseline
	run: apidiff -m -w ../baseline.bin .
	working-directory: "base"
	- name: Checkout updated code
	uses: actions/checkout@692973e3d937129bcbf40652eb9f2f61becf3332 # v4.1.7
	with:
	path: "updated"
	persist-credentials: false
	- name: Run apidiff check
	run: apidiff -m -incompatible ../baseline.bin .
	working-directory: "updated"

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