Use HTTP instead of SSH for cloning repo for JMH Benchmarks (#1056)

Changed `git clone` to use HTTP since we only need read-only access and
don't need to unnecessarily depend on SSH keys and authentication

Author: armughan11

.github/workflows/run_main_benchmarks.sh

@@ -3,7 +3,7 @@
 cd "$BRANCH_NAME/" 
 mkdir main
 cd main/ 
-git clone git@github.com:Uber/NullAway.git
+git clone https://github.com/uber/NullAway.git
 cd NullAway/ 
 
 ./gradlew jmh --no-daemon

.github/workflows/run_pr_benchmarks.sh

@@ -3,7 +3,7 @@
 cd "$BRANCH_NAME/" 
 mkdir pr
 cd pr/ 
-git clone --branch "$BRANCH_NAME" --single-branch git@github.com:"$REPO_NAME".git NullAway
+git clone --branch "$BRANCH_NAME" --single-branch https://github.com/"$REPO_NAME".git NullAway
 cd NullAway/ 
 
 ./gradlew jmh --no-daemon