chore: modernize the codebase using go 1.26 (#278)

This runs:

```
go run golang.org/x/tools/gopls/internal/analysis/modernize/cmd/modernize@latest -fix ./...
```

over the codebase, as this is using go 1.26, it can also use the new
new() functionallity so AsPtr and boolPtr is are needed anymore.

Signed-off-by: Miek Gieben <miek@miek.nl>

internal/machine/api/proxy/director.go

@@ -107,7 +107,7 @@ func (d *Director) remoteBackend(addr string) (*RemoteBackend, error) {
 
 // FlushRemoteBackends closes all remote backend connections and removes them from the cache.
 func (d *Director) FlushRemoteBackends() {
-	d.remoteBackends.Range(func(key, value interface{}) bool {
+	d.remoteBackends.Range(func(key, value any) bool {
 		backend, ok := value.(*RemoteBackend)
 		if !ok {
 			return true