chore: drop unused serverpod_cloud_storage

Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

halkyon_learn_server/pubspec.yaml

@@ -11,8 +11,6 @@ resolution: workspace
 dependencies:
   serverpod: 4.0.2
   serverpod_auth_idp_server: 4.0.2
-  serverpod_cloud_storage: 4.0.2
-
 dev_dependencies:
   lints: '>=3.0.0 <7.0.0'
   serverpod_test: 4.0.2

pubspec.lock

@@ -1,14 +1,6 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
-  _discoveryapis_commons:
-    dependency: transitive
-    description:
-      name: _discoveryapis_commons
-      sha256: "55dd9e9cb83f8b62aa5dd8744d3bfedf79d33f9457c1684916c2b5c69c6e3a9b"
-      url: "https://pub.dev"
-    source: hosted
-    version: "1.0.8"
   _fe_analyzer_shared:
     dependency: transitive
     description:
@@ -17,14 +9,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "103.0.0"
-  amazon_cognito_identity_dart_2:
-    dependency: transitive
-    description:
-      name: amazon_cognito_identity_dart_2
-      sha256: ff3d493eb94d9dc624bd8f0a92bf49754e67d39717e6a52ff0c7dd14e5c0e20b
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.8.2"
   analyzer:
     dependency: transitive
     description:
@@ -399,14 +383,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.2.0"
-  google_cloud:
-    dependency: transitive
-    description:
-      name: google_cloud
-      sha256: b385e20726ef5315d302c5933bfb728103116c5be2d3d17094b01a82da538c1f
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.5.0"
   google_fonts:
     dependency: transitive
     description:
@@ -463,22 +439,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.3"
-  googleapis:
-    dependency: transitive
-    description:
-      name: googleapis
-      sha256: d38bb64016ef27eca7fde992994b9d2999bcea307685807e15d6a08bff05dc61
-      url: "https://pub.dev"
-    source: hosted
-    version: "17.0.0"
-  googleapis_auth:
-    dependency: transitive
-    description:
-      name: googleapis_auth
-      sha256: d31822528becea550f7c7a9ab73a4518e31e48f201ab574be7e141f262923f27
-      url: "https://pub.dev"
-    source: hosted
-    version: "2.3.4"
   hex:
     dependency: transitive
     description:
@@ -575,14 +535,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.0"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.7.2"
   leak_tracker:
     dependency: transitive
     description:
@@ -975,30 +927,6 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.0.2"
-  serverpod_cloud_storage:
-    dependency: transitive
-    description:
-      name: serverpod_cloud_storage
-      sha256: "328e9f45e979720925af2174c461da6b0e2d514abcca803511e546815ddbf35e"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.0.2"
-  serverpod_cloud_storage_gcp:
-    dependency: transitive
-    description:
-      name: serverpod_cloud_storage_gcp
-      sha256: b2a29b974dd70b34e3ce4f53323ac0a3af4c1dca1ee045f0bc9b323c9454c0fd
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.0.2"
-  serverpod_cloud_storage_s3_compat:
-    dependency: transitive
-    description:
-      name: serverpod_cloud_storage_s3_compat
-      sha256: "4c2862921d7ab6348f24b01b900168183ef00d86223572b9fcbf57ffd73b5c09"
-      url: "https://pub.dev"
-    source: hosted
-    version: "4.0.2"
   serverpod_database:
     dependency: transitive
     description: