CI Builds for Debian 12 Failing

[futurejones]

Description

CI builds for Debian 12 are consistently failing at the same point.
https://ci.swift.org/job/oss-swift-package-debian-12-aarch64/

Reproduction

N/A

Expected behavior

Successful builds

Environment

Debian 12

Additional information

The issue is being caused by being unable to find the host Swift install for bootstrapping.
See build logs -
-- Warning: {} Host toolchain could not locate a compiler to build swift-driver.

This problem seems to be unique to Debian Docker containers being started via ssh e.g. a Jenkins pipeline build.
When the container is started via ssh the saved env PATH is overwritten.

The solution is to add the PATH to /etc/profile

Added fix here - swiftlang/swift-docker#397

[futurejones]

@shahmishal