docs: remove beta status from README

Mark giskard-checks and giskard-scan as Stable now that packages ship 1.x / 3.0.

Co-authored-by: Kevin Messiaen <kevinmessiaen@users.noreply.github.com>

Author: cursoragent

README.md

@@ -23,7 +23,7 @@
 <br />
 
 > [!IMPORTANT]
-> **Giskard v3** is a fresh rewrite designed for dynamic, multi-turn testing of AI agents. This release drops heavy dependencies for better efficiency while introducing a more powerful AI vulnerability scanner and enhanced RAG evaluation — both now shipping natively in `giskard-scan` (beta), with no dependency on v2. Only the legacy scan for **tabular/ML models** remains v2-only.
+> **Giskard v3** is a fresh rewrite designed for dynamic, multi-turn testing of AI agents. This release drops heavy dependencies for better efficiency while introducing a more powerful AI vulnerability scanner and enhanced RAG evaluation — both now shipping natively in `giskard-scan`, with no dependency on v2. Only the legacy scan for **tabular/ML models** remains v2-only.
 > **Giskard v2 remains available but is no longer actively maintained.**
 > Follow progress → [Read the v3 Announcement](https://github.com/orgs/Giskard-AI/discussions/2250) · [Roadmap](https://github.com/Giskard-AI/giskard-oss/issues/2252)
 
@@ -53,8 +53,8 @@ Giskard is an open-source Python library for **testing and evaluating agentic sy
 
 | Status         | Package          | Description                                                                                                                                                              |
 | -------------- | ---------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
-| ✅ Beta        | `giskard-checks` | Testing & evaluation — scenario API, built-in checks, LLM-as-judge                                                                                                       |
-| ✅ Beta        | `giskard-scan`   | Agent vulnerability scanner + RAG/quality evaluation — red teaming, prompt injection, jailbreaks & harmful content (`vulnerability_scan`, successor of [v2 Scan](https://legacy-docs.giskard.ai/en/stable/open_source/scan/index.html)), plus knowledge-base quality eval (`quality_scan`, successor of [v2 RAGET](https://legacy-docs.giskard.ai/en/stable/open_source/testset_generation/index.html)) |
+| ✅ Stable      | `giskard-checks` | Testing & evaluation — scenario API, built-in checks, LLM-as-judge                                                                                                       |
+| ✅ Stable      | `giskard-scan`   | Agent vulnerability scanner + RAG/quality evaluation — red teaming, prompt injection, jailbreaks & harmful content (`vulnerability_scan`, successor of [v2 Scan](https://legacy-docs.giskard.ai/en/stable/open_source/scan/index.html)), plus knowledge-base quality eval (`quality_scan`, successor of [v2 RAGET](https://legacy-docs.giskard.ai/en/stable/open_source/testset_generation/index.html)) |
 
 These build on three foundational libraries — `giskard-core` (shared utilities & telemetry), `giskard-llm` (provider-agnostic LLM routing), and `giskard-agents` (agent & workflow orchestration) — which are pulled in automatically and rarely used directly.