Issue #3148304 by Albert Volkman: Fix submitForm calls

src/Tests/OptimizelyAddUpdateTest.php

src/Tests/OptimizelyAliasIncludeSnippetTest.php

src/Tests/OptimizelyDefaultProjectTest.php

src/Tests/OptimizelyDefaultSettingsTest.php

src/Tests/OptimizelyEnableDisableTest.php

src/Tests/OptimizelyIncludeSnippetTest.php

src/Tests/OptimizelyPageSnippetTest.php