Merge #19228

19228: doccheck: avoid generating dot or html r=kaspar030 a=kfessel

### Contribution description

doccheck without generating dot or html

this also has some new generated lines for exclude_pattern (some of them where broke so I regenerated the block)

### Testing procedure

doccheck 

### Issues/PRs references



Co-authored-by: Karl Fessel <karl.fessel@ovgu.de>

dist/tools/doccheck/check.sh

@@ -15,6 +15,10 @@ RIOTBASE="$(cd "${SCRIPTDIR}"/../../..; pwd)"
 EXCLUDE_PATTERN_FILE="${SCRIPTDIR}/exclude_patterns"
 GENERIC_EXCLUDE_PATTERN_FILE="${SCRIPTDIR}/generic_exclude_patterns"
 
+if [[ -z ${DOCUMENTATION_FORMAT+x} ]]; then
+export DOCUMENTATION_FORMAT=check
+fi
+
 . "${RIOTBASE}"/dist/tools/ci/github_annotate.sh
 
 github_annotate_setup
@@ -33,7 +37,6 @@ DOXY_OUTPUT=$(make -C "${RIOTBASE}" doc 2>&1 | grep -Evf "${EXCLUDE_PATTERN_FILE
 DOXY_ERRCODE=$?
 RESULT=0
 
-
 if [ "${DOXY_ERRCODE}" -ne 0 ] ; then
     echo "'make doc' exited with non-zero code (${DOXY_ERRCODE})"
     echo "${DOXY_OUTPUT}"
@@ -53,6 +56,8 @@ else
                           sed -e 's/^[ \t]*//' -e 's/[ \t]*$//')
                 github_annotate_error "${FILENAME}" "${LINENR}" "${DETAILS}"
             done
+            # show errors not matching the pattern above
+            echo "${ERRORS}" | grep -v "^.\+:[0-9]\+: warning:"
         else
             echo -e "${CERROR}ERROR: Doxygen generates the following warnings:${CRESET}"
             echo "${ERRORS}"