Introduce method "Environment" to the Runners interface.

This way we can relate to which environment a runner belongs.

internal/runner/runner_mock.go

@@ -1,4 +1,4 @@
-// Code generated by mockery v0.0.0-dev. DO NOT EDIT.
+// Code generated by mockery v2.10.4. DO NOT EDIT.
 
 package runner
 
@@ -32,6 +32,20 @@ func (_m *RunnerMock) Destroy() error {
 	return r0
 }
 
+// Environment provides a mock function with given fields:
+func (_m *RunnerMock) Environment() dto.EnvironmentID {
+	ret := _m.Called()
+
+	var r0 dto.EnvironmentID
+	if rf, ok := ret.Get(0).(func() dto.EnvironmentID); ok {
+		r0 = rf()
+	} else {
+		r0 = ret.Get(0).(dto.EnvironmentID)
+	}
+
+	return r0
+}
+
 // ExecuteInteractively provides a mock function with given fields: id, stdin, stdout, stderr
 func (_m *RunnerMock) ExecuteInteractively(id string, stdin io.ReadWriter, stdout io.Writer, stderr io.Writer) (<-chan ExitInfo, context.CancelFunc, error) {
 	ret := _m.Called(id, stdin, stdout, stderr)