Fix sponsors contact links

Author: cmaureir

src/pages/en/sponsors.astro

@@ -122,7 +122,7 @@ const pricingData = [
     ],
     button: {
       text: "Register",
-      link: "#",
+      link: "mailto:sponsors@pyladies.com",
     },
   },
   {
@@ -138,7 +138,7 @@ const pricingData = [
     ],
     button: {
       text: "Register",
-      link: "#",
+      link: "mailto:sponsors@pyladies.com",
     },
   },
 ];

src/pages/es/sponsors.astro

@@ -122,7 +122,7 @@ const pricingData = [
     ],
     button: {
       text: "Register",
-      link: "#",
+      link: "mailto:sponsors@pyladies.com",
     },
   },
   {
@@ -139,7 +139,7 @@ const pricingData = [
     ],
     button: {
       text: "Register",
-      link: "#",
+      link: "mailto:sponsors@pyladies.com",
     },
   },
 ];