update builder to use go1.23.4 #324

	# Copyright 2024 The Sigstore Authors.
	#
	# Licensed under the Apache License, Version 2.0 (the "License");
	# you may not use this file except in compliance with the License.
	# You may obtain a copy of the License at
	#
	# http://www.apache.org/licenses/LICENSE-2.0
	#
	# Unless required by applicable law or agreed to in writing, software
	# distributed under the License is distributed on an "AS IS" BASIS,
	# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	# See the License for the specific language governing permissions and
	# limitations under the License.

	name: Conformance Tests

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	permissions:
	contents: read

	jobs:
	conformance:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
	with:
	persist-credentials: false
	- uses: actions/setup-go@3041bf56c941b39c61721a86cd11f3bb1338122a # v5.2.0
	with:
	go-version-file: 'go.mod'
	check-latest: true

	- run: make cosign conformance

	- uses: sigstore/sigstore-conformance@b0635d4101f11dbd18a50936568a1f7f55b17760 # v0.0.14
	with:
	entrypoint: ${{ github.workspace }}/conformance

Provide feedback