fix(teams): move microsoft-graph-client to dependencies

[cipher416]

Fixes #112.

@chat-adapter/teams imports @microsoft/microsoft-graph-client at runtime but it was listed under devDependencies. This causes consumer installs to fail if the package isn't present transitively.

Changes:

• Move @microsoft/microsoft-graph-client to dependencies in packages/adapter-teams/package.json
• Update pnpm-lock.yaml

Repro notes:

• The adapter's dist entry imports @microsoft/microsoft-graph-client/authProviders/... at runtime, so it must be a runtime dependency (not devDependency).

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