build: update aqt version to 3.3.0

[SavenkovIgor]

No description provided.

[Copilot]

Pull request overview

Updates the pinned aqtinstall (AQT) version used across local bootstrap tooling, devcontainer image, and GitHub Actions CI to keep Qt installation tooling consistent.

Changes:

• Bump AQT_VERSION to 3.3.0 in tools/bootstrap.py.
• Update CI workflow AQT_VERSION pin to ==3.3.0 for install-qt-action.
• Update devcontainer AQT_VERSION to 3.3.0 and adjust spacing in agent guidelines markdown.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

File	Description
tools/bootstrap.py	Updates the AQT version used by uvx --from aqtinstall@... when bootstrapping Qt locally.
.github/workflows/ci.yml	Updates the AQT version constraint used by jurplel/install-qt-action@v4 in CI.
.devcontainer/Dockerfile	Updates the AQT version used for installing Qt inside the devcontainer image.
.codex/AGENTS.md	Adds blank lines to improve section readability/formatting.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.