fix: handle empty/windows paths correctly in base-path-aware path fix… #4002

Job	Run time
Run Lint / Run Lint	7s
Build Worker / Build App	1m 12s
Codecov Startup / Codecov Startup	13s
Test / Test	5m 8s
Push Production Image / Push production Image	1m 20s
Push Production Image / Push Release Image	0s
Push Production Image / Push Rolling Image	0s
Build Self Hosted Worker / Build Self Hosted App	1m 46s
Push Staging Image / Push staging Image	1m 22s
Push Staging Image / Push Release Image	0s
Push Staging Image / Push Rolling Image	0s
Build Self Hosted Worker / Push Self Hosted Image	0s
Build Self Hosted Worker / Push Self Hosted Release Image	0s
Push Self Hosted Image / Build Self Hosted App	51s
Push Self Hosted Image / Push Self Hosted Image	1m 37s
Push Self Hosted Image / Push Self Hosted Release Image	0s
	13m 36s

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