fix(maintainerr): update image docker.io/maintainerr/maintainerr 3.15.2 → 3.15.3 (#49412)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
|
[docker.io/maintainerr/maintainerr](https://redirect.github.com/Maintainerr/Maintainerr)
| patch | `dcfd3f0` → `ab62182` |

---

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---

### Release Notes

<details>
<summary>Maintainerr/Maintainerr
(docker.io/maintainerr/maintainerr)</summary>

###
[`v3.15.3`](https://redirect.github.com/Maintainerr/Maintainerr/blob/HEAD/CHANGELOG.md#3153-2026-06-23)

[Compare
Source](https://redirect.github.com/Maintainerr/Maintainerr/compare/v3.15.2...v3.15.3)

#### Highlights

- Improved Plex rule evaluation performance by prefetching watch history
in bulk, reducing API calls and enhancing efficiency
([#&#8203;3082](https://redirect.github.com/Maintainerr/Maintainerr/issues/3082)).
- Standardized UI action buttons with consistent corner radii, text
styles, and theme colors
([#&#8203;3143](https://redirect.github.com/Maintainerr/Maintainerr/issues/3143),
[#&#8203;3144](https://redirect.github.com/Maintainerr/Maintainerr/issues/3144)).

#### Fixes

- Log benign SSE client disconnects without a stack trace to reduce log
noise
([#&#8203;3145](https://redirect.github.com/Maintainerr/Maintainerr/issues/3145)).
- Initialize the active media server adapter immediately after a switch
to prevent false connection-test failures.
- Dropped BETA tag from notifications and marked download client as
BETA.
- Fixed `ExecuteButton` corner radius to align with the shared `Button`
component
([#&#8203;3144](https://redirect.github.com/Maintainerr/Maintainerr/issues/3144)).
- Standardized action buttons on the shared `Button` component and
ensured consistent theme colors
([#&#8203;3143](https://redirect.github.com/Maintainerr/Maintainerr/issues/3143)).
- Explicitly installed corepack in the dev container for compatibility
with Node 26+
([#&#8203;3141](https://redirect.github.com/Maintainerr/Maintainerr/issues/3141)).

#### Performance

- Optimized Plex rule evaluation by prefetching watch history in bulk,
reducing redundant API calls
([#&#8203;3082](https://redirect.github.com/Maintainerr/Maintainerr/issues/3082)).

#### Internal

- Updated documentation for the development environment, including
devbox workflows and agent confinement models.
- Fixed stale workspace path in agent documentation
(/home/maintainerr-dev -> /workspace).

#### Dependencies

- Updated 1 dependency: explicitly installed corepack for Node 26+
compatibility.

</details>

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charts/stable/maintainerr/Chart.yaml

@@ -9,7 +9,7 @@ annotations:
   trueforge.org/min_helm_version: "3.14"
   trueforge.org/train: stable
 apiVersion: v2
-appVersion: 3.15.2
+appVersion: 3.15.3
 dependencies:
   - name: common
     version: 29.5.3
@@ -36,5 +36,5 @@ sources:
   - https://github.com/trueforge-org/truecharts/tree/master/charts/stable/maintainerr
   - https://hub.docker.com/r/maintainerr/maintainerr
 type: application
-version: 7.16.2
+version: 7.16.3
 

charts/stable/maintainerr/values.yaml

@@ -2,7 +2,7 @@
 image:
   repository: docker.io/maintainerr/maintainerr
   pullPolicy: IfNotPresent
-  tag: 3.15.2@sha256:dcfd3f0862c31fced3a28ad2ae58c232a53d786b8c5b062cfc986570da8cb89f
+  tag: 3.15.3@sha256:ab621826a54bf1a4388e7de9d7c3dadd365d9abf39f26e485503e8f10453ad2e
 
 securityContext:
   container: