IGNITE-11600: Fix launch scripts for Java 12 (#6326)

diff --git a/web-agent/bin/ignite-web-agent.bat b/web-agent/bin/ignite-web-agent.bat
index 991baaf..547d959 100644
--- a/web-agent/bin/ignite-web-agent.bat
+++ b/web-agent/bin/ignite-web-agent.bat
@@ -118,7 +118,7 @@
     %JVM_OPTS%
 )
 
-if "%MAJOR_JAVA_VER%" == "11" (
+if "%MAJOR_JAVA_VER%" GEQ "11" (
     set JVM_OPTS= ^
     --add-exports=java.base/jdk.internal.misc=ALL-UNNAMED ^
     --add-exports=java.base/sun.nio.ch=ALL-UNNAMED ^
diff --git a/web-agent/bin/ignite-web-agent.sh b/web-agent/bin/ignite-web-agent.sh
index 56b0030..80ba578 100755
--- a/web-agent/bin/ignite-web-agent.sh
+++ b/web-agent/bin/ignite-web-agent.sh
@@ -80,7 +80,7 @@
         --add-modules=java.xml.bind \
         ${JVM_OPTS}"
 
-elif [ $version -eq 11 ] ; then
+elif [ $version -ge 11 ] ; then
     JVM_OPTS="\
         --add-exports=java.base/jdk.internal.misc=ALL-UNNAMED \
         --add-exports=java.base/sun.nio.ch=ALL-UNNAMED \