💚 Bump psalm error level +badges

Author: cdosoftei

README.md

@@ -1 +1,7 @@
-### FreeSWITCH Integration Core
+# FreeSWITCH Integration Core
+
+[![CI Status](https://github.com/rtckit/ficore/workflows/CI/badge.svg)](https://github.com/rtckit/ficore/actions/workflows/ci.yaml)
+[![Psalm Type Coverage](https://shepherd.dev/github/rtckit/ficore/coverage.svg)](https://shepherd.dev/github/rtckit/ficore)
+[![Latest Stable Version](https://poser.pugx.org/rtckit/ficore/v/stable.png)](https://packagist.org/packages/rtckit/ficore)
+[![Installs on Packagist](https://img.shields.io/packagist/dt/rtckit/ficore?color=blue&label=Installs%20on%20Packagist)](https://packagist.org/packages/rtckit/ficore)
+[![License](https://img.shields.io/badge/license-MIT-blue)](LICENSE)

etc/psalm.xml

@@ -7,6 +7,7 @@
     findUnusedCode="false"
     findUnusedBaselineEntry="false"
     findUnusedVariablesAndParams="false"
+    errorLevel="1"
 >
     <projectFiles>
         <directory name="../src" />