Switch to ghcr.io image for Synapse (matrix-org#12869)

Due to dockerhub rate-limiting Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

Author: t3chguy

.github/workflows/playwright-image-updates.yaml

@@ -9,14 +9,14 @@ jobs:
  steps:
  - uses: actions/checkout@v4
 
- - name: Update matrixdotorg/synapse image
+ - name: Update synapse image
  run: |
  docker pull "$IMAGE"
  INSPECT=$(docker inspect --format='{{index .RepoDigests 0}}' "$IMAGE")
  DIGEST=${INSPECT#*@}
  sed -i "s/const DOCKER_TAG.*/const DOCKER_TAG = \"develop@$DIGEST\";/" playwright/plugins/homeserver/synapse/index.ts
  env:
- IMAGE: matrixdotorg/synapse:develop
+ IMAGE: ghcr.io/element-hq/synapse:develop
 
  - name: Create Pull Request
  id: cpr

docs/playwright.md

@@ -29,7 +29,7 @@ need to have Docker installed and working in order to run the Playwright tests.
 There are a few different ways to run the tests yourself. The simplest is to run:
 
 ```shell
-docker pull matrixdotorg/synapse:develop
+docker pull ghcr.io/element-hq/synapse:develop
 yarn run test:playwright
 ```
 

playwright/plugins/homeserver/synapse/index.ts

@@ -25,10 +25,10 @@ import { Docker } from "../../docker";
 import { HomeserverConfig, HomeserverInstance, Homeserver, StartHomeserverOpts, Credentials } from "..";
 import { randB64Bytes } from "../../utils/rand";
 
-// Docker tag to use for `matrixdotorg/synapse` image.
+// Docker tag to use for synapse docker image.
 // We target a specific digest as every now and then a Synapse update will break our CI.
 // This digest is updated by the playwright-image-updates.yaml workflow periodically.
-const DOCKER_TAG = "develop@sha256:37e50604408ec07e1add96a38c3c97559e321a9f2764bd4d132bc2fb172c73e6";
+const DOCKER_TAG = "develop@sha256:f8613aeda996b6e9c2235c8141cc8e9a65eb25ed7bcd932505e5dd3c9231b748";
 
 async function cfgDirFromTemplate(opts: StartHomeserverOpts): Promise<Omit<HomeserverConfig, "dockerUrl">> {
  const templateDir = path.join(__dirname, "templates", opts.template);
@@ -110,7 +110,7 @@ export class Synapse implements Homeserver, HomeserverInstance {
  console.log(`Starting synapse with config dir ${synCfg.configDir}...`);
  const dockerSynapseParams = ["-v", `${synCfg.configDir}:/data`, "-p", `${synCfg.port}:8008/tcp`];
  const synapseId = await this.docker.run({
- image: `matrixdotorg/synapse:${DOCKER_TAG}`,
+ image: `ghcr.io/element-hq/synapse:${DOCKER_TAG}`,
  containerName: `react-sdk-playwright-synapse`,
  params: dockerSynapseParams,
  cmd: ["run"],