build(deps): bump tailscale.com from 1.76.3 to 1.76.6

Bumps [tailscale.com](https://github.com/tailscale/tailscale) from 1.76.3 to 1.76.6.
- [Release notes](https://github.com/tailscale/tailscale/releases)
- [Commits](tailscale/tailscale@v1.76.3...v1.76.6)

---
updated-dependencies:
- dependency-name: tailscale.com
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

go.mod

@@ -4,7 +4,7 @@ go 1.23.1
 
 require (
 	github.com/aws/aws-sdk-go v1.55.5
-	tailscale.com v1.76.3
+	tailscale.com v1.76.6
 )
 
 require (

go.sum

@@ -37,5 +37,5 @@ gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
-tailscale.com v1.76.3 h1:UBfYxqgsSAjutLix2doZBfTw8bBuE7Cj1DzsREow1wA=
-tailscale.com v1.76.3/go.mod h1:myCwmhYBvMCF/5OgBYuIW42zscuEo30bAml7wABVZLk=
+tailscale.com v1.76.6 h1:qxRVe/ljIVWixIiCLOHrakbsoXcw/dKaKCZt25tJ7gc=
+tailscale.com v1.76.6/go.mod h1:myCwmhYBvMCF/5OgBYuIW42zscuEo30bAml7wABVZLk=