Change av cargo categories

To publish our crate, we must use official categories.  In this case, "virtualization" specifically calls out containers and seems appropriate.

Upstream: https://github.com/rust-lang/crates.io/pull/8930

Signed-off-by: Brent Baude <bbaude@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 55e671f..f854dfe 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ readme = "README.md"
 description = "A container-focused DNS server"
 homepage = "https://github.com/containers/aardvark-dns"
 repository = "https://github.com/containers/aardvark-dns"
-categories = ["containers", "networking", "dns", "podman"]
+categories = ["virtualization"]
 exclude = ["/.cirrus.yml", "/.github/*"]
 
 [package.metadata.vendor-filter]