chore(deps): update container image diygod/rsshub to latest@21650e0 (#15355)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| diygod/rsshub | digest | `67c4ee1` -> `21650e0` |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the Dependency
Dashboard for more information.

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Enabled.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR has been generated by [Renovate
Bot](https://togithub.com/renovatebot/renovate).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNy42OC4xIiwidXBkYXRlZEluVmVyIjoiMzcuNjguMSIsInRhcmdldEJyYW5jaCI6Im1hc3RlciJ9-->

charts/stable/rsshub/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v2
 kubeVersion: ">=1.16.0-0"
 name: rsshub
-version: 8.0.272
-appVersion: "latest"
+version: 8.0.273
+appVersion: latest
 description: RSSHub can generate RSS feeds from pretty much everything
 type: application
 deprecated: false

charts/stable/rsshub/values.yaml

@@ -1,7 +1,7 @@
 image:
   repository: diygod/rsshub
   pullPolicy: IfNotPresent
-  tag: latest@sha256:67c4ee1e43f62e9f046fdd076914b95dad92aff7f8c86f7fff01b8a7b0a9358f
+  tag: latest@sha256:21650e0e683592c79f19e03d55971f8ee4cbfecbb48e1def12e2723292bad517
 browserlessImage:
   repository: browserless/chrome
   tag: 1.60.2-chrome-stable@sha256:7db5e3aad20c201abaa03bbbc868a55ef96574cda0e67ccb7e4e032053ecb87d