Fix: Install plugins when they have no plugin archive info(catalog en… (#109200)

* fix: install plugins when they have URL is set

* test:INSTALL_PLUGINS private plugin with version

pkg/setting/setting_plugins_test.go

@@ -394,6 +394,17 @@ func Test_migrateInstallPluginsToPreinstallPluginsSync(t *testing.T) {
 				},
 			},
 		},
+		{name: "parse private plugin",
+			installPluginsVal: "https://s3.our.domain/grafana-plugins/our-plugin-datasource-1.2.0+linux.zip;our-plugin-datasource 1.2.0",
+			preinstallPlugins: map[string]InstallPlugin{},
+			expectedPlugins: map[string]InstallPlugin{
+				"our-plugin-datasource": {
+					ID:      "our-plugin-datasource",
+					Version: "1.2.0",
+					URL:     "https://s3.our.domain/grafana-plugins/our-plugin-datasource-1.2.0+linux.zip",
+				},
+			},
+		},
 	}
 
 	for _, tc := range tests {