bump(togetherai-skills): fa0811d6 → 644d3822 (#5465)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -3599,7 +3599,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/togethercomputer/skills.git",
-        "sha": "fa0811d63d3769609911126bd52bb60cbe5c99f7"
+        "sha": "644d38225bbdef0318462fe222f6f9883c8addcd"
       },
       "homepage": "https://www.together.ai"
     },