src/goToolsInformation: update dlv-dap latest version

Change-Id: I8024a6c2b0d079327ae560bf4e59a6594fdedb1a
Reviewed-on: https://go-review.googlesource.com/c/vscode-go/+/337890
Trust: Hyang-Ah Hana Kim <hyangah@gmail.com>
Run-TryBot: Hyang-Ah Hana Kim <hyangah@gmail.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Polina Sokolova <polina@google.com>

Author: hyangah

src/goToolsInformation.ts

@@ -224,8 +224,8 @@ export const allToolsInformation: { [key: string]: Tool } = {
 		description: 'Go debugger (Delve built for DAP experiment)',
 		defaultVersion: 'master', // Always build from the master.
 		minimumGoVersion: semver.coerce('1.14'), // last 3 versions per delve policy
-		latestVersion: semver.parse('v1.6.2-0.20210611174649-688f94a4f838'),
-		latestVersionTimestamp: moment('2021-06-11', 'YYYY-MM-DD')
+		latestVersion: semver.parse('v1.7.1-0.20210729173401-89ed5a0b1972'),
+		latestVersionTimestamp: moment('2021-07-29', 'YYYY-MM-DD')
 	},
 	'fillstruct': {
 		name: 'fillstruct',