Added gitignore for fips examples (#1604)

Author: pranavrth

examples/fips/.gitignore

@@ -0,0 +1,4 @@
+docker/secrets/*
+!docker/secrets/broker_jaas.conf
+!docker/secrets/zookeeper_jaas.conf
+!docker/secrets/generate_certificates.sh

tools/style-format.sh

@@ -27,7 +27,7 @@ else
 fi
 
 clang_format_version=$(${CLANG_FORMAT} --version | sed -Ee 's/.*version ([[:digit:]]+)\.[[:digit:]]+\.[[:digit:]]+.*/\1/')
-if [[ $clang_format_version != "15" ]] ; then
+if [[ $clang_format_version != "10" ]] ; then
     echo "$0: clang-format version 10, '$clang_format_version' detected"
     exit 1
 fi