Martin Stepanek

[outputs.postgresql] add setting to retry connection

1

### Relevant telegraf.conf ```toml [[outputs.postgresql]] connection = "host=timescaledb1.intra,host=timescaledb2.intra user=telegraf password=XXX dbname=telegraf sslmode=disable target_session_attrs=read-write" schema = "public" create_templates = [ '''CREATE TABLE {{ .table }} ({{ .columns }})''', '''SELECT create_hypertable({{ .table|quoteLiteral...