Added bindep for PDF

Reviewed-by: tischrei <tino.schreiber@t-systems.com>
Co-authored-by: Gode, Sebastian <sebastian.gode@t-systems.com>
Co-committed-by: Gode, Sebastian <sebastian.gode@t-systems.com>

.gitignore

@@ -59,3 +59,6 @@ ChangeLog
 
 # Files created by releasenotes build
 releasenotes/build
+
+bindep.txt
+packages.txt

otc_metadata/templates/tox.ini.j2

@@ -43,15 +43,19 @@ commands =
 {%- endfor %}
 
 [testenv:docs-pdf]
-deps = {[testenv:docs]deps}
+deps =
+  {[testenv:docs]deps}
+  {[testenv:bindeps]deps}
 allowlist_externals =
   rm
   mkdir
+  wget
   make
   bash
   cp
 commands =
   mkdir -p doc/build/pdf
+  {[testenv:bindeps]commands}
 {%- for doc in docs %}
 {%- if doc.pdf_name %}
   {[testenv:{{ doc.type }}-pdf-docs]commands}
@@ -118,6 +122,21 @@ commands =
 {% endif %}
 {% endfor %}
 
+[testenv:bindeps]
+deps =
+    bindep
+allowlist_externals =
+    wget
+    rm
+    bash
+commands =
+    rm -rf {toxinidir}/bindep.txt
+    rm -rf {toxinidir}/packages.txt
+    wget -O {toxinidir}/bindep.txt https://raw.githubusercontent.com/opentelekomcloud/otcdocstheme/main/bindep.txt
+    bash -c "bindep test -b -f {toxinidir}/bindep.txt > {toxinidir}/packages.txt || true"
+    bash -c 'if [ -s {toxinidir}/packages.txt ]; then if command -v apt &>/dev/null; then apt update && xargs apt install --no-install-recommends -y < {toxinidir}/packages.txt; fi; fi'
+    bash -c 'if [ -s {toxinidir}/packages.txt ]; then if command -v dnf &>/dev/null; then dnf install -y $(cat {toxinidir}/packages.txt); fi; fi'
+
 [doc8]
 ignore = D001
 extensions = .rst, .yaml