chore: several minor updates, bump helm, base-plugins and backup base img (#865)

backup/pvc/Dockerfile

@@ -1,4 +1,4 @@
-FROM debian:bullseye-slim
+FROM debian:bookworm-slim
 
 LABEL maintainer="Jenkins Kubernetes Operator Community" \
       org.opencontainers.image.authors="Jenkins Kubernetes Operator Community" \
@@ -6,7 +6,7 @@ LABEL maintainer="Jenkins Kubernetes Operator Community" \
       org.opencontainers.image.description="Jenkins Operator Backup img via pvc volume" \
       org.opencontainers.image.url="quay.io/jenkins-kubernetes-operator/backup-pvc" \
       org.opencontainers.image.source="https://github.com/jenkinsci/kubernetes-operator/tree/master/backup/pvc" \
-      org.opencontainers.image.base.name="debian:bullseye-slim"
+      org.opencontainers.image.base.name="debian:bookworm-slim"
 
 ARG UID
 ARG GID
@@ -24,9 +24,9 @@ RUN apt update \
     --uid "$UID" \
     "$USER"
 
+COPY bin/*.sh /home/user/bin/
+RUN chmod +x /home/user/bin/*.sh
 WORKDIR /home/user/bin
-COPY bin .
-RUN chmod +x *.sh
 USER user
 
 CMD ./run.sh

backup/pvc/Makefile

@@ -151,7 +151,6 @@ bump-version: sembump ## Bump the version in the version file. Set BUMP to [ pat
 	echo $(NEW_VERSION) > VERSION.txt
 	git add VERSION.txt
 	git commit -avm "Bump backup PVC version to $(NEW_VERSION)"
-	rm $(PROJECT_DIR)/bin/sembump
 
 .PHONY: tag
 tag: ## Create a new git tag to prepare to build a release

backup/pvc/VERSION.txt

@@ -1 +1 @@
-v0.2.4
+v0.2.5