Dockerfile: update RootlessKit to v2.0.1

https://github.com/rootless-containers/rootlesskit/releases/tag/v2.0.1

Fix issue 47327 (`rootless lxc-user-nic: /etc/resolv.conf missing ip`)

Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>

Dockerfile

@@ -352,7 +352,7 @@ FROM base AS rootlesskit-src
 WORKDIR /usr/src/rootlesskit
 RUN git init . && git remote add origin "https://github.com/rootless-containers/rootlesskit.git"
 # When updating, also update vendor.mod and hack/dockerfile/install/rootlesskit.installer accordingly.
-ARG ROOTLESSKIT_VERSION=v2.0.0
+ARG ROOTLESSKIT_VERSION=v2.0.1
 RUN git fetch -q --depth 1 origin "${ROOTLESSKIT_VERSION}" +refs/tags/*:refs/tags/* && git checkout -q FETCH_HEAD
 
 FROM base AS rootlesskit-build

hack/dockerfile/install/rootlesskit.installer

@@ -1,7 +1,7 @@
 #!/bin/sh
 
 # When updating, also update vendor.mod and Dockerfile accordingly.
-: "${ROOTLESSKIT_VERSION:=v2.0.0}"
+: "${ROOTLESSKIT_VERSION:=v2.0.1}"
 
 install_rootlesskit() {
 	case "$1" in