Better detect plan summary line #783

Job	Run time
Change without github comment	24s
No changes	26s
No changes without comment	21s
Change terraform 13	23s
Add comment without token	24s
Error	25s
Change terraform 12	26s
Change terraform 14	23s
Change terraform 15.4	22s
Change terraform 15	23s
Error without comment	22s
Change latest terraform	25s
Plan single variable	27s
Change terraform 11	22s
Plan variables some which are sensitive	28s
Change with shell init commands	22s
Plan JSON tfvars	25s
Test plan text on Terraform 1.4	28s
Default path	25s
Plan single sensitive variable	21s
Full colour plan for diff highlighting	48s
always-new	38s
Plan using deprecated var and sensitive variable	26s
Test on arm64	32s
Error with invalid paths	27s
	10m 53s

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