Update ghcr.io/charlesthomas/bitwarden-cli Docker tag to v2026.9.0 (#13)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [ghcr.io/charlesthomas/bitwarden-cli](https://github.com/charlesthomas/bitwarden-cli) | minor | `2026.8.0` → `2026.9.0` |

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### Release Notes

<details>
<summary>charlesthomas/bitwarden-cli (ghcr.io/charlesthomas/bitwarden-cli)</summary>

### [`v2026.9.0`](https://github.com/charlesthomas/bitwarden-cli/releases/tag/2026.9.0)

[Compare Source](https://github.com/charlesthomas/bitwarden-cli/compare/2026.8.0...2026.9.0)

2026.9.0

</details>

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Co-authored-by: Renovate Bot <bot@renovateapp.com>
Reviewed-on: #13

apps/infra/bitwarden-cli.yaml

@@ -60,7 +60,7 @@ spec:
         kubernetes.io/arch: amd64
       containers:
         - name: bitwarden-cli
-          image: ghcr.io/charlesthomas/bitwarden-cli:2026.8.0
+          image: ghcr.io/charlesthomas/bitwarden-cli:2026.9.0
           imagePullPolicy: IfNotPresent
           # Override the baked entrypoint so --disable-origin-protection is
           # actually passed (it was commented out in the image's entrypoint.sh,