fix: fixes env compatibility problem with container execution

[dekobon]

Fixes #127

This change hardcodes the path to bash when it is used within Docker. Ideally, we should be able to use env to locate bash, it seems that some container execution platforms do not support it.

Invoking bash from the development, CI, or Ubuntu full installs will continue to use the env pattern.

This change builds off of this PR.

Proposed changes

• Updated the shebang line in common/docker-entrypoint.d/00-check-for-required-env.sh from #!/usr/bin/env bash to #!/usr/bin/bash for consistency and direct interpreter invocation.
• Updated the shebang line in common/docker-entrypoint.sh from #!/usr/bin/env bash to #!/usr/bin/bash.
• Added a shebang line (#!/usr/bin/bash) to common/docker-entrypoint.d/22-enable_js_fetch_trusted_certificate.sh to ensure the script is executed with the correct shell.the supported keywords in this PR description (not in the title of the PR).

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[Copilot]

Pull Request Overview

This PR fixes an issue where Docker containers cannot locate bash using the env command by hardcoding the bash path in shebang lines. The change ensures consistent bash interpreter invocation across Docker-specific scripts while maintaining the env pattern for development and CI environments.

• Updates shebang lines from #!/usr/bin/env bash to #!/usr/bin/bash in Docker entrypoint scripts
• Adds missing shebang line to one script that previously lacked proper shell specification
• Maintains compatibility with container execution platforms that don't support env command

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
common/docker-entrypoint.sh	Updated shebang to use direct bash path
common/docker-entrypoint.d/00-check-for-required-env.sh	Updated shebang to use direct bash path
common/docker-entrypoint.d/22-enable_js_fetch_trusted_certificate.sh	Added missing shebang with direct bash path

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[4141done]

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