docs: fix Antalya token_processor version (since 25.8, not 26.1)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: BorisTyshkevich

docs/oauth-jwt-flow.html

@@ -326,7 +326,7 @@ <h3>What the sidecar does, <i>per query</i></h3>
   <!-- 9 — FORWARDING (Antalya) -->
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     <h2>Forwarding mode <span class="sub" style="font-size:.55em">— ClickHouse Antalya, native JWT</span></h2>
-    <p class="lead">Antalya CH (<code>token_processor</code> since 26.1; latest 26.3) validates JWTs <b>itself</b>, so MCP just forwards the bearer — no sidecar, no Basic. Mainline CH lacks this, which is why forward mode targets Antalya / <code>altinityantalya</code> builds.</p>
+    <p class="lead">Antalya CH (<code>token_processor</code> since 25.8; latest 26.3) validates JWTs <b>itself</b>, so MCP just forwards the bearer — no sidecar, no Basic. Mainline CH lacks this, which is why forward mode targets Antalya / <code>altinityantalya</code> builds.</p>
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         <div class="node mcp"><div class="t">Altinity MCP</div></div>