v4.3.0

📚 PR:

• chore(gitignore): use latest github ignore template (#70)
• ci(dependabot): update github actions (#71)
• Bump actions/setup-node from v1 to v2.1.5 (#73)
• Bump fastify/github-action-merge-dependabot from v1 to v1.2.1 (#72)
• Bump fastify/github-action-merge-dependabot from v1.2.1 to v2.0.0 (#77)
• fix: add closeClient on namespaced client (#76)
• fix: add missing namespace and closeClient type (#74)