Update whoogle.json (#371)

updated to reflect the latest tag.  The creator of the whoogle containers actively supports new versions as they release in the container.

template/apps/whoogle.json

@@ -4,9 +4,9 @@
 		"Tools"
 	],
 	"description": "Self-hosted, ad-free, privacy-respecting Google metasearch engine.",
-	"image_arm32": "benbusby/whoogle-search:0.7.3",
-	"image_arm64": "benbusby/whoogle-search:0.7.3",
-	"image_amd64": "benbusby/whoogle-search:0.7.3",
+	"image_arm32": "benbusby/whoogle-search:latest",
+	"image_arm64": "benbusby/whoogle-search:latest",
+	"image_amd64": "benbusby/whoogle-search:latest",
 	"logo": "https://raw.githubusercontent.com/pi-hosted/pi-hosted/master/images/whoogle.png",
 	"name": "whoogle",
 	"officialDoc": "https://github.com/benbusby/whoogle-search#g-manual-docker",