fix: custom dockerfile location for dockerfile buildpack

fix: able to use custom port for git cloning

database/migrations/2023_03_27_081716_create_applications_table.php

@@ -23,6 +23,7 @@ return new class extends Migration
             $table->string('git_repository');
             $table->string('git_branch');
             $table->string('git_commit_sha')->default('HEAD');
+            // TODO: remove this column, it is not used
             $table->string('git_full_url')->nullable();
 
             $table->string('docker_registry_image_name')->nullable();