Suppress Psalm warning and ensure type safety

Suppressed a Psalm warning in the httpCache conditional check in Bootstrap.php. Ensured type safety in TestModule.php and HttpLinkFactory.php by explicitly casting environment variable to string and specifying function parameter and return types.

src/Asd/HttpLinkFactory.php

@@ -21,7 +21,7 @@ public function __construct(
     #[Override]
     public function __invoke(Created $created): AlpsLink
     {
-        $url = fn ($path): array|string => str_replace($this->alpsDir, $this->host, $path);
+        $url = fn (string $path): string => str_replace($this->alpsDir, $this->host, $path);
 
         return new AlpsLink(
             $url($created->profileFile),

src/Bootstrap.php

@@ -30,6 +30,7 @@ public function __invoke(string $context, array $globals, array $server): int
     {
         $app = Injector::getInstance($context)->getInstance(AppInterface::class);
         assert($app instanceof App);
+        /** @psalm-suppress InvalidArgument */
         if ($app->httpCache->isNotModified($server)) {
             $app->httpCache->transfer();
 

src/Module/TestModule.php

@@ -20,7 +20,7 @@ protected function configure(): void
         (new Dotenv())->load(dirname(__DIR__, 2));
         $this->install(
             new AuraSqlModule(
-                getenv('MA_DB_DSN') . '_test',
+                (string) getenv('MA_DB_DSN') . '_test',
                 (string) getenv('MA_DB_USER'),
                 (string) getenv('MA_DB_PASS'),
                 (string) getenv('MA_DB_SLAVE')