[Build] Building the pulsar-standalone image requires user interaction

[timmyyuan]

Describe the bug
Building the pulsar-standalone image requires user interaction, which prevents automation of the release process

To Reproduce
Steps to reproduce the behavior:

1. checkout the master branch
2. build the pulsar-standalone image

Expected behavior
The building process should not require user interaction

Screenshots

2021-08-09T22:58:27.8089540Z [INFO] Step 4/27 : RUN apt-get update     && apt-get -y install openjdk-11-jdk-headless python3 python3-dev python3-pip postgresql sudo nginx supervisor libpq-dev
...
2021-08-09T22:59:34.7372513Z [INFO] Configuring tzdata
2021-08-09T22:59:34.7374367Z [INFO] ------------------
2021-08-09T22:59:34.7375141Z [INFO] 
2021-08-09T22:59:34.7376247Z [INFO] Please select the geographic area in which you live. Subsequent configuration
2021-08-09T22:59:34.7379816Z [INFO] questions will narrow this down by presenting a list of cities, representing
2021-08-09T22:59:34.7381062Z [INFO] the time zones in which they are located.
2021-08-09T22:59:34.7381769Z [INFO] 
2021-08-09T22:59:34.7389206Z [INFO]   1. Africa      4. Australia  7. Atlantic  10. Pacific  13. Etc
2021-08-09T22:59:34.7390263Z [INFO]   2. America     5. Arctic     8. Europe    11. SystemV
2021-08-09T22:59:34.7391192Z [INFO]   3. Antarctica  6. Asia       9. Indian    12. US
2021-08-09T22:59:34.7391975Z [INFO] Geographic area: 

Additional context
Introduced by #11026