Avoid potential reallocs by pre-sizing some slices

There's a couple spots where we know exactly how large
the destination buffer should be, so pre-size these to
avoid any reallocs to a higher capacity.

Signed-off-by: Danny Canter <danny@dcantah.dev>

internal/nri/container.go

@@ -64,9 +64,9 @@ func commonContainerToNRI(ctr Container) *nri.Container {
 }
 
 func containersToNRI(ctrList []Container) []*nri.Container {
-	ctrs := []*nri.Container{}
-	for _, ctr := range ctrList {
-		ctrs = append(ctrs, containerToNRI(ctr))
+	ctrs := make([]*nri.Container, len(ctrList))
+	for i, ctr := range ctrList {
+		ctrs[i] = containerToNRI(ctr)
 	}
 	return ctrs
 }