♻️ Add minimal Container boot

tests/unit/Testables/Shell/RealShellTest.swift

@@ -9,13 +9,12 @@
 import Testing
 import Foundation
 
-@Suite(.serialized)
 struct RealShellTest {
     var container: Container
 
     init() async throws {
         // Reset to the default shell
-        container = Container.real()
+        container = Container.real(minimal: true)
     }
 
     @Test func system_shell_is_default() async {

tests/unit/Testables/Shell/TestableShellTest.swift

@@ -9,7 +9,6 @@
 import Testing
 import Foundation
 
-@Suite(.serialized)
 struct TestableShellTest {
     @Test func fake_shell_output_can_be_declared() async {
         let greeting = BatchFakeShellOutput(items: [