feat: bump base image fedora version to 33

* plus some Dockerfile refactoring

Dockerfile

@@ -1,4 +1,4 @@
-FROM fedora:32
+FROM fedora:33
 
 ENV HUGO_VERSION 0.76.5
 
@@ -15,15 +15,15 @@ LABEL org.label-schema.build-date=$BUILD_DATE \
 ADD https://github.com/gohugoio/hugo/releases/download/v${HUGO_VERSION}/hugo_extended_${HUGO_VERSION}_Linux-64bit.tar.gz /tmp/hugo.tar.gz
 
 WORKDIR /tmp/
-RUN dnf --refresh upgrade -y && dnf install -y git && dnf autoremove -y
+RUN dnf --refresh upgrade -y && dnf install -y git findutils && dnf autoremove -y
 RUN tar xfv /tmp/hugo.tar.gz && rm -v /tmp/hugo.tar.gz README.md LICENSE \
     && chmod +x /tmp/hugo \
     && mkdir -pv /usr/local/bin \
     && mv -v /tmp/hugo /usr/local/bin/
 RUN dnf clean all -y \
-    && rm -rv /usr/share/zoneinfo/* ; \
-    rm -rv /usr/share/i18n/* ;rm -rv /usr/include/* ; \
+    && rm -rv /usr/share/zoneinfo/* ; rm -rv /usr/include/* ; \
     find /. -name "*~" -type f -delete; \
     find /usr/share/terminfo/. ! -name "*xterm*" ! -name "*screen*" ! -name "*screen*" -type f -delete; \
-    rm -rv /tmp/* || true
+    rm -rv /tmp/* ; \
+    dnf autoremove -y findutils; dnf clean all -y || true
 WORKDIR /

README.md

@@ -13,7 +13,7 @@ push mirror lives in [this GitHub repo](https://github.com/wULLSnpAXbWZGYDYyhWTK
 development happens on [this Gitea instance](https://git.dotya.ml/wanderer/docker-fedora-hugo)
 
 ## What you get
-* updated `fedora:32` image
+* updated `fedora:33` image
 * git
 * hugo-extended (latest version from [GitHub](https://github.com/gohugoio/hugo/releases))