Bump the gomod group with 1 update

[dependabot]

Bumps the gomod group with 1 update: tailscale.com.

Updates tailscale.com from 1.50.1 to 1.56.0

Release notes

Sourced from tailscale.com's releases.

1.56.0

All Platforms

• improve responsiveness under load, especially with bidirectional traffic
• improve UPnP portmapping
• add tailscale whois subcommand to observe metadata associated with a Tailscale IP
• include tailnet name and profile ID in tailscale switch --list to disambiguate profiles with common login names
• make System policies beta

Linux

• improve tailscale web interface for configuring some device settings such as exit nodes, subnet routers, and Tailscale SSH
• improve containerboot to symlink its socket file if possible, making the tailscale CLI work without --socket=/tmp/tailscale.sock
• support tailscale update for Unraid

Windows

• improve throughput for userspace ("netstack") mode in the presence of packet loss
• disable dynamic DNS updates for the tailscale interface via registry setting
• begin displaying tailnet name in profile switcher
• improve robustness when restarting GUI processes during Windows client upgrades

macOS

• deliver notification when a file is received using Taildrop (Mac App Store variant only)
• add shortcut action to send files using Taildrop
• add in-app warnings and push notifications when internet connectivity is blocked due to the current exit node being offline or having an expired key
• improve experience stopping Tailscale from the toggle in the menubar; now terminates the VPN tunnel entirely
• inform user when running a TestFlight build from 'About Tailscale' window
• fix /etc/resolv file formatting with Tailscaled-on-macOS
• begin displaying tailnet name in profile switcher

iOS

• add view to show DNS configuration
• add "Allow Local Network Access" to exit node picker UI
• add shortcut action to send files using Taildrop
• include received file names in Taildrop notifications
• add in-app warnings and push notifications when internet connectivity is blocked due to the current exit node being offline or having an expired key
• inform user when running a TestFlight build from 'About Tailscale' window
• reduce app size by about 2 MB with better assets compression
• begin displaying tailnet name in profile switcher

tvOS

• add tvOS UI to be a subnet router and configure routes
• inform user when running a TestFlight build from 'About Tailscale' window

GoKrazy

• use TUN mode by default

Kubernetes

• add support in Kubernetes operator cluster egress for referring to a tailnet service by its MagicDNS name

1.54.1

macOS

... (truncated)

Commits

• f51793b VERSION.txt: this is v1.56.0
• e00141c go.mod.sri: update SRI hash for go.mod changes
• e78cb9a go.mod: update web-client-prebuilt module
• 4fb679d client/web: fix redirect logic when accessing login client over TS IP
• 869b34d prober: log HTTP response body on failure
• affe11c net/netcheck: only run HTTP netcheck for tamago clients
• 3ba5fd4 go.mod.sri: update SRI hash for go.mod changes
• be19262 go.mod: update web-client-prebuilt module
• 7370f3e words: some stellar additions
• 77f5d66 client/web: fix key expiry text when expiry disabled
• Additional commits viewable in compare view

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[dependabot]

Superseded by #83.