[gimp-web/oscp] testing.docs.gimp.org: pngnq package is not available anymore

[Jacob Boerema <jboerema src gnome org>]

commit 82045cd0703798409c8aec885ae8bc8ca2db8ae3
Author: Jacob Boerema <jgboerema gmail com>
Date:   Wed Jul 20 18:02:47 2022 -0400

    testing.docs.gimp.org: pngnq package is not available anymore

 testing.docs.gimp.org/docs_build/Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/testing.docs.gimp.org/docs_build/Dockerfile b/testing.docs.gimp.org/docs_build/Dockerfile
index 01219c22..597147d8 100644
--- a/testing.docs.gimp.org/docs_build/Dockerfile
+++ b/testing.docs.gimp.org/docs_build/Dockerfile
@@ -2,7 +2,7 @@ FROM debian:testing
 
 RUN apt-get update && apt-get install -y --no-install-recommends \
     automake build-essential docbook-xml docbook-xsl pkg-config \
-    pngcrush pngnq python3 python3-libxml2 xsltproc gettext git \
+    pngcrush python3 python3-libxml2 xsltproc gettext git \
     ca-certificates rsync docbook-website librsvg2-bin fonts-noto-cjk
 
 ADD entrypoint.sh /entrypoint.sh