fix: update pretty test snapshots for whitespace normalization #984

Job	Run time
parser-tests (deparser)	59s
parser-tests (proto-parser)	56s
parser-tests (plpgsql-parser)	1m 5s
parser-tests (transform)	5m 49s
parser-tests (traverse)	59s
parser-tests (plpgsql-deparser)	1m 5s
parser-tests (pgsql-cli)	56s
parser-tests (parser)	59s
parser-tests (utils)	1m 0s
	13m 48s

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