Fix psalm UndefinedClass errors

Messages:
    ERROR: UndefinedClass - src/Curl/Curl.php:217:64 - Class, interface or enum named CurlHandle does not exist (see https://psalm.dev/019)
            if (is_resource($this->curl) || $this->curl instanceof \CurlHandle) {

    ERROR: UndefinedClass - src/Curl/Curl.php:1570:64 - Class, interface or enum named CurlHandle does not exist (see https://psalm.dev/019)
            if (is_resource($this->curl) || $this->curl instanceof \CurlHandle) {

    ERROR: UndefinedClass - src/Curl/MultiCurl.php:396:74 - Class, interface or enum named CurlMultiHandle does not exist (see https://psalm.dev/019)
            if (is_resource($this->multiCurl) || $this->multiCurl instanceof \CurlMultiHandle) {

Author: zachborboa

psalm.xml

@@ -12,4 +12,16 @@
             <directory name="vendor" />
         </ignoreFiles>
     </projectFiles>
+    <issueHandlers>
+        <UndefinedClass>
+            <errorLevel type="suppress">
+                <referencedClass name="CurlHandle" />
+                <file name="src/Curl/Curl.php" />
+            </errorLevel>
+            <errorLevel type="suppress">
+                <referencedClass name="CurlMultiHandle" />
+                <file name="src/Curl/MultiCurl.php" />
+            </errorLevel>
+        </UndefinedClass>
+    </issueHandlers>
 </psalm>