split files to key value pair

Input file
           - name: APPENV
             value: STAGING
           - name: ELASTICSEARCH_USER
             value: elastic
           - name: WRITE_LOGS_TO_ELASTICSEARCH
             value: "true"
           - name: version
             value: "5"

Expected output:

APPENV: STAGING
ELASTICSEARCH_USER: elastic
WRITE_LOGS_TO_ELASTICSEARCH: "true"
version: "5"

tried awk -F "e:" '{print $2}' filename to abstract only key and value, but need to align this as above output. Any help would be appreciated

>Solution :

This works:

awk '
sub(/^[[:space:]]+- name: /, ""){n=$0}
sub(/^[[:space:]]+value: /, ""){print n": "$0}'

Match and remove the name: /value: labels, and print the remainder of both lines on a single line.