Update supported puppet version

kajinamit · kajinamit · commit 3800eff9c578 · 2023-07-13T02:19:18.000+09:00
Puppet 5 is already EOL. This also adds Puppet 7 which was released
a long ago.
diff --git a/metadata.json b/metadata.json
@@ -63,7 +63,7 @@
   "requirements": [
     {
       "name": "puppet",
-      "version_requirement": ">= 4.7.0 < 7.0.0"
+      "version_requirement": ">= 6.0.0 < 8.0.0"
     }
   ],
   "pdk-version": "1.19.0.pre (heads/master-0-g3d6a310)",

Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,7 @@`
`63`	`63`	`"requirements": [`
`64`	`64`	`{`
`65`	`65`	`"name": "puppet",`
`66`		`- "version_requirement": ">= 4.7.0 < 7.0.0"`
	`66`	`+ "version_requirement": ">= 6.0.0 < 8.0.0"`
`67`	`67`	`}`
`68`	`68`	`],`
`69`	`69`	`"pdk-version": "1.19.0.pre (heads/master-0-g3d6a310)",`