Bump postcss from 8.4.39 to 8.4.40 in /assets #11445

Job	Run time
Check common misspellings	19s
Elixir dependencies	23s
Npm dependencies	49s
Check if the regression test criteria are met, store in the job output	1s
Generate project documentation	0s
Rebuild main branch dependencies	12s
Npm E2E dependencies	16s
API bc check (V1)	50s
API bc check (V2)	51s
Chromatic deployment	38s
Run FE tests	1m 55s
Test	1m 39s
Static Code Analysis	4m 40s
End to end tests	15m 49s
Regression tests	0s
Build the docker image for the demo environment	0s
Build and push container images	0s
Commit to OBS to generate container image	0s
Deploy updated images to the demo environment	0s
Commit to OBS to generate RPM package	0s
Use photofinish to push mock data to the demo environment	0s
	28m 22s

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