Remote buildfarm build fails: Cannot run program "/bin/python3"

[grihabor]

Describe the bug
Building a pex_binary on the buildfarm fails with Cannot run program "/bin/python3"

worker-1           | Oct 27, 2024 5:59:40 PM build.buildfarm.worker.Executor executeCommand
worker-1           | SEVERE: error starting process for shard/executions/349cddaa-6ce0-4a09-a7c7-7c08c2f5021c
worker-1           | java.io.IOException: Cannot run program "/bin/python3" (in directory "/tmp/worker/shard/executions/349cddaa-6ce0-4a09-a7c7-7c08c2f5021c"): error=2, No such file or directory
worker-1           |    at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1170)
worker-1           |    at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1089)
worker-1           |    at build.buildfarm.common.ProcessUtils.threadSafeStart(ProcessUtils.java:46)
worker-1           |    at build.buildfarm.worker.Executor.executeCommand(Executor.java:525)
worker-1           |    at build.buildfarm.worker.Executor.executePolled(Executor.java:315)
worker-1           |    at build.buildfarm.worker.Executor.runInterruptible(Executor.java:171)
worker-1           |    at build.buildfarm.worker.Executor.run(Executor.java:406)
worker-1           |    at build.buildfarm.worker.ExecuteActionStage.lambda$iterate$0(ExecuteActionStage.java:138)
worker-1           |    at java.base/java.lang.Thread.run(Thread.java:1583)
worker-1           | Caused by: java.io.IOException: error=2, No such file or directory
worker-1           |    at java.base/java.lang.ProcessImpl.forkAndExec(Native Method)
worker-1           |    at java.base/java.lang.ProcessImpl.<init>(ProcessImpl.java:295)
worker-1           |    at java.base/java.lang.ProcessImpl.start(ProcessImpl.java:225)
worker-1           |    at java.base/java.lang.ProcessBuilder.start(ProcessBuilder.java:1126)
worker-1           |    ... 8 more

Pants version
2.22.0

OS
Ubuntu 24.04

Additional info

Steps to reproduce

First, build and run buildfarm:

git clone -b use-python-image https://github.com/grihabor/buildfarm
docker compose up --build -d

Second, try to build a pex on the buildfarm:

git clone https://github.com/grihabor/pants-playground
cd try-buildfarm
pants package :bin

[huonw]

There's a chance this may be related to #20731