fix(provider): enable thinking for google-vertex-anthropic models#10442

rekram1-node merged 3 commits intoanomalyco:devanomalyco/opencode:devfrom

MichaelYochpaz:fix/google-vertex-anthropic-thinkingMichaelYochpaz/opencode:fix/google-vertex-anthropic-thinkingCopy head branch name to clipboard