[FIX] Odoo 16.0: handle goarch and dpkg arch output

On ppc64le, the output of `dpkg --print-architecture` is `ppc64el`while
the goarch value is `ppc64le`.

So wkhtmltopdf would not be installed if the Dockerfile is built on a
ppc64le without using the TARGETARCH arg.

With this commit, this case is also handled.

Author: d-fence

16.0/Dockerfile

@@ -43,7 +43,7 @@ RUN apt-get update && \
     case ${TARGETARCH} in \
     "amd64") WKHTMLTOPDF_ARCH=amd64 && WKHTMLTOPDF_SHA=9df8dd7b1e99782f1cfa19aca665969bbd9cc159  ;; \
     "arm64")  WKHTMLTOPDF_SHA=58c84db46b11ba0e14abb77a32324b1c257f1f22  ;; \
-    "ppc64le") WKHTMLTOPDF_ARCH=ppc64el && WKHTMLTOPDF_SHA=7ed8f6dcedf5345a3dd4eeb58dc89704d862f9cd  ;; \
+    "ppc64le" | "ppc64el") WKHTMLTOPDF_ARCH=ppc64el && WKHTMLTOPDF_SHA=7ed8f6dcedf5345a3dd4eeb58dc89704d862f9cd  ;; \
     esac \
     && curl -o wkhtmltox.deb -sSL https://github.com/wkhtmltopdf/packaging/releases/download/0.12.6.1-3/wkhtmltox_0.12.6.1-3.bullseye_${WKHTMLTOPDF_ARCH}.deb \
     && echo ${WKHTMLTOPDF_SHA} wkhtmltox.deb | sha1sum -c - \