v0.13.9

Changelog

• e806c1b: tailscale_device_subnet_routes: Fix confusing error message (#228) (@clstokes)
• ed167e0: Bump tailscale.com from 1.38.3 to 1.40.1 (#235) (@dependabot[bot])
• f3205a6: Bump github.com/stretchr/testify from 1.8.2 to 1.8.4 (#241) (@dependabot[bot])
• fe344d6: Bump golang.org/x/tools from 0.7.0 to 0.9.1 (#234) (@dependabot[bot])
• 4a6da0f: Bump golang.org/x/tools from 0.9.1 to 0.9.2 (#242) (@dependabot[bot])
• 2d62074: Bump golang.org/x/tools from 0.9.2 to 0.12.0 (#264) (@dependabot[bot])
• 1a54933: Bump tailscale.com from 1.40.1 to 1.48.0 (#267) (@dependabot[bot])
• 835b40d: provider.go, docs/index.md: Fix misspelling of available (#261) (@WalterHub)
• 83c05b8: Bump google.golang.org/grpc from 1.51.0 to 1.53.0 (#255) (@dependabot[bot])
• b4494c5: Bump goreleaser/goreleaser-action from 3 to 4 (#189) (@dependabot[bot])
• 4ac8a5e: Bump actions/setup-go from 3 to 4 (#217) (@dependabot[bot])
• d53a122: Bump github.com/hashicorp/terraform-plugin-sdk/v2 from 2.26.1 to 2.27.0 (#253) (@dependabot[bot])
• 5ec0a92: docs: clarify tailnet var (#238) (@santiagon610)
• ce39573: go.mod, .github: use Go 1.21, update tailscale-client-go (#271) (@knyar)
• e2961ac: tailscale: use a custom User-Agent header while making API requests (#270) (@knyar)
• d4f94d4: tailscale: support Tailscale specific env vars (#257) (@henworth)
• 8c10c24: Bump github.com/hashicorp/terraform-plugin-docs from 0.14.1 to 0.16.0 (#258) (@dependabot[bot])
• 63e3fc7: tailscale: expose "created_at" and "expired_at" timestamps for Tailnet Keys (#195) (@CathalMullan)
• 9a87e2b: README.md: update defaults and examples (#272) (@knyar)