chore(deps): update zephyr-docker to v0.28.4

Author: renovate[bot]

.github/workflows/build.yml

@@ -56,7 +56,7 @@ on:
 jobs:
   build:
     runs-on: ubuntu-24.04
-    container: ghcr.io/zephyrproject-rtos/ci:v0.27.4
+    container: ghcr.io/zephyrproject-rtos/ci:v0.28.4
     env:
       CMAKE_PREFIX_PATH: /opt/toolchains
     outputs:

.github/workflows/compliance.yml

@@ -10,7 +10,7 @@ jobs:
   compliance_job:
     runs-on: ubuntu-24.04
     name: Run compliance checks on patch series (PR)
-    container: ghcr.io/zephyrproject-rtos/ci:v0.27.4
+    container: ghcr.io/zephyrproject-rtos/ci:v0.28.4
 
     # Skip job if it was triggered by Renovate Bot
     if: ${{ !contains(github.actor, 'renovate') }}

.github/workflows/dfu_check.yml

@@ -22,7 +22,7 @@ jobs:
   analyze:
     name: Static analysis
     runs-on: ubuntu-latest
-    container: ghcr.io/zephyrproject-rtos/ci:v0.27.4
+    container: ghcr.io/zephyrproject-rtos/ci:v0.28.4
     env:
       BUILD_WRAPPER_OUT_DIR: build_wrapper_output_directory
       CMAKE_PREFIX_PATH: /opt/toolchains

.github/workflows/sonarcloud.yml

@@ -18,7 +18,7 @@ jobs:
   build:
     name: Build and analyze
     runs-on: ubuntu-latest
-    container: ghcr.io/zephyrproject-rtos/ci:v0.27.4
+    container: ghcr.io/zephyrproject-rtos/ci:v0.28.4
     env:
       BUILD_WRAPPER_OUT_DIR: build_wrapper_output_directory # Directory where build-wrapper output will be placed
       CMAKE_PREFIX_PATH: /opt/toolchains

Dockerfile.twister

@@ -1,4 +1,4 @@
-FROM zephyrprojectrtos/ci:v0.27.4 as base
+FROM zephyrprojectrtos/ci:v0.28.4 as base
 
 ENV DEBIAN_FRONTEND=noninteractive