Update main.yml

Author: gcasa

.github/workflows/main.yml

@@ -33,7 +33,11 @@ env:
     libcurl4-gnutls-dev
     libgmp-dev
     libcairo2-dev
-
+    libjpeg-dev
+    libtiff-dev
+    libpng-dev
+    libicns-dev
+    
   # packages for GCC Objective-C runtime
   APT_PACKAGES_gcc: >-
     libobjc-10-dev