Fix Java path in Dockerfile

[sixhobbits]

If I run the Dockerfile as is I get an error

fusionauth-site$ ./run-docker
/usr/local/bin/sb: line 33: /usr/lib/jvm/java-17-openjdk-amd64/bin/java: No such file or directory

If I ssh into the container and run which java it tells me java is in /usr/bin/java

Changing this environment variable uses that Java binary (/bin/java is added later), and everything builds successfully. I can visit the site on the host machine at localhost:4000 as expected.

Not sure if this is somehow platform specific? I am using an M1 mac.

[mooreds]

@vcampitelli can you please take a look? I think you created the dockerfile and are a primary user.