[RQD] Fix build issues with Blender dockerfile (#1479)

**Link the Issue(s) this Pull Request is related to.**
Supports updates made in PR
#1440

**Summarize your change.**
Fixes issues in Blender Dockerfile to support Rockylinux base image
updates.

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samples/rqd/blender/Dockerfile

@@ -5,13 +5,12 @@ FROM opencue/rqd
 RUN yum -y update
 RUN yum -y install \
         bzip2 \
-        libfreetype6 \
-        libgl1-mesa-dev \
         libXi-devel  \
         mesa-libGLU-devel \
         zlib-devel \
         libXinerama-devel \
-        libXrandr-devel
+        libXrandr-devel \
+        xz
 
 # Set Blender install directory
 ARG BLENDER_INSTALL_DIR=/usr/local/blender