MINOR: Update Gradle to 7.6 (#12918)

The highlights are:
* Support for Java 19
* Support for incremental compilation following a compilation failure
* Flag for individual task rerun (eg "gradle test --rerun")
* Re-use Scala compiler between runs (will be enabled via #12280)

Release notes: https://docs.gradle.org/7.6/release-notes.html

Also adjusted the directory used by `retry_zinc` for the build output from
`build` to `logs` as `gradlew clean` was causing unintended deletion of
the file used by that tool to decide if a retry is required.

Reviewers: Manikumar Reddy <manikumar.reddy@gmail.com>

gradle/dependencies.gradle

@@ -62,7 +62,7 @@ versions += [
   checkstyle: "8.36.2",
   commonsCli: "1.4",
   dropwizardMetrics: "4.1.12.1",
-  gradle: "7.5.1",
+  gradle: "7.6",
   grgit: "4.1.1",
   httpclient: "4.5.13",
   easymock: "4.3",

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha=db9c8211ed63f61f60292c69e80d89196f9eb36665e369e7f00ac4cc841c2219
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5.1-all.zip
+distributionSha=312eb12875e1747e05c2f81a4789902d7e4ec5defbd1eefeaccc08acf096505d
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -118,7 +118,7 @@ esac
 # Loop in case we encounter an error.
 for attempt in 1 2 3; do
   if [ ! -e "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" ]; then
-    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v7.5.1/gradle/wrapper/gradle-wrapper.jar"; then
+    if ! curl -s -S --retry 3 -L -o "$APP_HOME/gradle/wrapper/gradle-wrapper.jar" "https://raw.githubusercontent.com/gradle/gradle/v7.6.0/gradle/wrapper/gradle-wrapper.jar"; then
       rm -f "$APP_HOME/gradle/wrapper/gradle-wrapper.jar"
       # Pause for a bit before looping in case the server throttled us.
       sleep 5

retry_zinc

@@ -28,17 +28,16 @@
 # [2021-10-19T17:25:07.234Z]   Lock file: /home/jenkins/.gradle/caches/7.0.2/zinc-1.3.5_2.13.6_8/zinc-1.3.5_2.13.6_8.lock
 
 set -uf -o pipefail
-mkdir -p ./build
+mkdir -p logs
 retryable=1
 while [[ "$retryable" != 0 ]]; do
 	retryable=0
-	rm -f ./build/buildoutput.log
 
-	"$@" 2>&1 | tee ./build/buildoutput.log
+	"$@" 2>&1 | tee logs/buildoutput.log
 	commandReturnCode=$?
 
 	if [ $commandReturnCode -ne 0 ]; then
-		if grep "Timeout waiting to lock zinc" ./build/buildoutput.log; then
+		if grep "Timeout waiting to lock zinc" logs/buildoutput.log; then
 			retryable=1
 			echo 'Retrying due to zinc lock timeout'
 			continue