Reduce docker image size

Dockerfile

@@ -48,17 +48,18 @@ RUN cargo build --release
 ##########
 FROM almalinux:9
 
-RUN dnf install -y epel-release
-RUN curl -L https://mirrors.rpmfusion.org/free/el/rpmfusion-free-release-$(rpm -E %rhel).noarch.rpm \
-    -o /tmp/rpmfusion-free.rpm && \
-    rpm -i /tmp/rpmfusion-free.rpm && rm /tmp/rpmfusion-free.rpm
-RUN curl -L https://mirrors.rpmfusion.org/nonfree/el/rpmfusion-nonfree-release-$(rpm -E %rhel).noarch.rpm \
-    -o /tmp/rpmfusion-nonfree.rpm && \
-    rpm -i /tmp/rpmfusion-nonfree.rpm && rm /tmp/rpmfusion-nonfree.rpm
-RUN dnf install -y 'dnf-command(config-manager)'
-RUN dnf config-manager --enable crb
-RUN dnf install -y ffmpeg python3 python3-pip
-RUN pip3 install ytmusicapi
+RUN dnf install -y epel-release && \
+    curl -L https://mirrors.rpmfusion.org/free/el/rpmfusion-free-release-$(rpm -E %rhel).noarch.rpm \
+        -o /tmp/rpmfusion-free.rpm && \
+    rpm -i /tmp/rpmfusion-free.rpm && rm /tmp/rpmfusion-free.rpm && \
+    curl -L https://mirrors.rpmfusion.org/nonfree/el/rpmfusion-nonfree-release-$(rpm -E %rhel).noarch.rpm \
+        -o /tmp/rpmfusion-nonfree.rpm && \
+    rpm -i /tmp/rpmfusion-nonfree.rpm && rm /tmp/rpmfusion-nonfree.rpm && \
+    dnf install -y 'dnf-command(config-manager)' && \
+    dnf config-manager --enable crb && \
+    dnf install -y ffmpeg python3 python3-pip && \
+    pip3 install ytmusicapi && \
+    dnf clean all && pip cache purge
 
 WORKDIR /insomnia_bot
 COPY --from=builder /insomnia_bot/target/release/insomnia-bot ./