refactor(data): sets new icon versions to 0.20.0

Author: araiford

docs/_data/icons.json5

@@ -60,7 +60,7 @@
     },
     {
       name: 'chart',
-      minver: '0.19.0',
+      minver: '0.20.0',
     },
     {
       name: 'checkmark',
@@ -160,14 +160,14 @@
     },
     {
       name: 'heartbeat-fill',
-      minver: '0.19.0',
+      minver: '0.20.0',
       keywords: [
         'monitoring',
       ],
     },
     {
       name: 'heartbeat-outline',
-      minver: '0.19.0',
+      minver: '0.20.0',
       keywords: [
         'monitoring',
       ],
@@ -500,7 +500,7 @@
     },
     {
       name: 'shield-lock',
-      minver: '0.19.0',
+      minver: '0.20.0',
       keywords: [
         'security',
       ],