fix: Make bootstrap.sh/env.rc work on Linux platforms

[dakusui]

Hi! Thank you for making the nice project open-source! ;)
I am working on making insdog work/be developed in Linux platform.
Here's a PR, please have a look at it!

[dakusui]

Currently, I am getting a following warning during build.sh build.
Except for that things are working fine, it seems.

[INFO] Running jp.co.moneyforward.autotest.ut.builtins.TableQueryTest
Playwright Host validation warning: 
╔══════════════════════════════════════════════════════╗
║ Host system is missing dependencies to run browsers. ║
║ Missing libraries:                                   ║
║     libicudata.so.70                                 ║
║     libicui18n.so.70                                 ║
║     libicuuc.so.70                                   ║
║     libvpx.so.7                                      ║
╚══════════════════════════════════════════════════════╝
    at validateDependenciesLinux (/tmp/playwright-java-11220505117427655116/package/lib/server/registry/dependencies.js:216:9)
    at async Registry._validateHostRequirements (/tmp/playwright-java-11220505117427655116/package/lib/server/registry/index.js:603:43)
    at async Registry._validateHostRequirementsForExecutableIfNeeded (/tmp/playwright-java-11220505117427655116/package/lib/server/registry/index.js:701:7)
    at async Registry.validateHostRequirementsForExecutablesIfNeeded (/tmp/playwright-java-11220505117427655116/package/lib/server/registry/index.js:690:43)
    at async t.<anonymous> (/tmp/playwright-java-11220505117427655116/package/lib/cli/program.js:119:7)
[INFO] Tests run: 3, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 3.099 s -- in jp.co.moneyforward.autotest.ut.builtins.TableQueryTest

[dakusui]

Hi, there!
I've checked the change works on my macOS laptop.
Cheers ;)

[sukezan]

LGTM!
I tried it on Ubuntu in my macOS. And confirmed that it works.

[dakusui]

Glad to hear that! UTM is a really nice solution for this, isn't it.
I'm waiting for your merge as I don't see any merge button on my end :)