chore: Added node and playwright installation steps in Dockerfile

[srathod-apphelix]

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Make sure that the following steps are done before merging:

• Have a Site Reliability Engineer review the PR if you don't own all of the services impacted.
• If you are adding any new default values that need to be overridden when this change goes live, update internal repos and add an entry to the top of the CHANGELOG.
• Performed the appropriate testing.

[Copilot]

Pull Request Overview

This PR adds Node.js 20.x and Playwright installation to the GitHub Actions runner Docker image to enable browser-based testing capabilities.

Key Changes:

• Added Node.js 20.x installation using NodeSource repository
• Installed Playwright globally with browser binaries

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[Copilot]

The curl command pipes directly to bash without verification. Consider adding checksum verification or using a specific version hash to ensure the integrity of the installation script before execution.

Suggested change

	RUN curl -fsSL https://deb.nodesource.com/setup_20.x | bash - \
	&& apt-get install -y nodejs
	RUN apt-get update && apt-get install -y gnupg dirmngr \
	&& cd /tmp \
	&& curl -fsSLO https://deb.nodesource.com/setup_20.x \
	&& curl -fsSLO https://deb.nodesource.com/setup_20.x.asc \
	&& export GNUPGHOME="$(mktemp -d)" \
	&& gpg --keyserver keyserver.ubuntu.com --recv-keys 1655A0AB68576280 \
	&& gpg --verify setup_20.x.asc setup_20.x \
	&& bash setup_20.x \
	&& apt-get install -y nodejs \
	&& rm -rf "$GNUPGHOME" /tmp/setup_20.x /tmp/setup_20.x.asc

[Copilot]

Installing Playwright without specifying a version may lead to inconsistent builds. Consider pinning to a specific version (e.g., 'playwright@1.40.0') to ensure reproducible builds and avoid unexpected breaking changes.

Suggested change

	RUN npm install -g playwright && npx playwright install --with-deps
	RUN npm install -g playwright@1.40.0 && npx playwright install --with-deps

[Copilot]

Multiple RUN commands increase Docker layer size and build time. Consider combining these into a single RUN command with apt-get clean and removal of package lists to reduce the final image size.