internal/ci: switch to '.yaml' workflow file extension

This alignment with the filetype 'yaml' makese logic elsewhere simpler.
Specifically the `@export`-like behaviour of writefs in
https://cuelang.org/cl/1200710.

Signed-off-by: Paul Jolly <[email protected]>
Change-Id: If0a3c1c1d392782c25b3f15f0d75ff32cbc6933c
Dispatch-Trailer: {"type":"trybot","CL":1200723,"patchset":1,"ref":"refs/changes/23/1200723/1","targetBranch":"master"}

.github/workflows/evict_caches.yml → .github/workflows/evict_caches.yaml

@@ -89,7 +89,7 @@ jobs:
           		echo Latest commit: $sha
 
           		echo "Trigger workflow on cue-lang/cue"
-          		curl -s -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.CUECKOO_GITHUB_PAT }}" -H "X-GitHub-Api-Version: 2022-11-28" --fail-with-body -X POST https://api.github.com/repos/cue-lang/cue/actions/workflows/trybot.yml/dispatches -d "{\"ref\":\"$j\"}"
+          		curl -s -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.CUECKOO_GITHUB_PAT }}" -H "X-GitHub-Api-Version: 2022-11-28" --fail-with-body -X POST https://api.github.com/repos/cue-lang/cue/actions/workflows/trybot.yaml/dispatches -d "{\"ref\":\"$j\"}"
 
           		# Ensure that the trybot repo has the latest commit for
           		# this branch.  If the force-push results in a commit
@@ -121,7 +121,7 @@ jobs:
           			# We are up-to-date, i.e. the push did nothing, hence we need to trigger a workflow_dispatch
           			# in the trybot repo.
           			echo "Trigger workflow on cue-lang/cue-trybot"
-          			curl -s -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.CUECKOO_GITHUB_PAT }}" -H "X-GitHub-Api-Version: 2022-11-28" --fail-with-body -X POST https://api.github.com/repos/cue-lang/cue-trybot/actions/workflows/trybot.yml/dispatches -d "{\"ref\":\"$j\"}"
+          			curl -s -L -H "Accept: application/vnd.github+json" -H "Authorization: Bearer ${{ secrets.CUECKOO_GITHUB_PAT }}" -H "X-GitHub-Api-Version: 2022-11-28" --fail-with-body -X POST https://api.github.com/repos/cue-lang/cue-trybot/actions/workflows/trybot.yaml/dispatches -d "{\"ref\":\"$j\"}"
           		else
           			echo "Force-push to cue-lang/cue-trybot did work; nothing to do"
           		fi

internal/ci/base/base.cue

@@ -55,7 +55,7 @@ botGerritHubUser:                   *botGitHubUser | string
 botGerritHubUserPasswordSecretsKey: *(strings.ToUpper(botGitHubUser) + "_GERRITHUB_PASSWORD") | string
 botGerritHubUserEmail:              *botGitHubUserEmail | string
 
-workflowFileExtension: ".yml"
+workflowFileExtension: ".yaml"
 
 linuxMachine: string