chore(workflows): Use more recent version of minio image

Signed-off-by: Louis Chmn <louis@chmn.me>

Author: artonge

.github/workflows/files-external-s3.yml

@@ -48,7 +48,7 @@ jobs:
 
     services:
       minio:
-        image: bitnami/minio
+        image: bitnami/minio@sha256:50cec18ac4184af4671a78aedd5554942c8ae105d51a465fa82037949046da01 # v2025.4.22
         env:
           MINIO_ROOT_USER: nextcloud
           MINIO_ROOT_PASSWORD: bWluaW8tc2VjcmV0LWtleS1uZXh0Y2xvdWQ=

.github/workflows/integration-s3-primary.yml

@@ -53,7 +53,7 @@ jobs:
         ports:
           - 6379:6379/tcp
       minio:
-        image: bitnami/minio
+        image: bitnami/minio@sha256:50cec18ac4184af4671a78aedd5554942c8ae105d51a465fa82037949046da01 # v2025.4.22
         env:
           MINIO_ROOT_USER: nextcloud
           MINIO_ROOT_PASSWORD: bWluaW8tc2VjcmV0LWtleS1uZXh0Y2xvdWQ=

.github/workflows/object-storage-s3.yml

@@ -58,7 +58,7 @@ jobs:
         options: --health-cmd="redis-cli ping" --health-interval=10s --health-timeout=5s --health-retries=3
 
       minio:
-        image: bitnami/minio
+        image: bitnami/minio@sha256:50cec18ac4184af4671a78aedd5554942c8ae105d51a465fa82037949046da01 # v2025.4.22
         env:
           MINIO_ROOT_USER: nextcloud
           MINIO_ROOT_PASSWORD: bWluaW8tc2VjcmV0LWtleS1uZXh0Y2xvdWQ=

.github/workflows/phpunit-object-store-primary.yml

@@ -60,7 +60,7 @@ jobs:
         options: --health-cmd="redis-cli ping" --health-interval=10s --health-timeout=5s --health-retries=3
 
       minio:
-        image: bitnami/minio
+        image: bitnami/minio@sha256:50cec18ac4184af4671a78aedd5554942c8ae105d51a465fa82037949046da01 # v2025.4.22
         env:
           MINIO_ROOT_USER: nextcloud
           MINIO_ROOT_PASSWORD: bWluaW8tc2VjcmV0LWtleS1uZXh0Y2xvdWQ=