[CI] add cache key (commented for now)

2 jobs for dev-test in 40 minutes and 48 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test
failed #1573
docs

00:21:06

failed #1574
test

00:19:42

 
Name Stage Failure
failed
test Test
      /builds/gargantext/haskell-gargantext/.stack-root/setup-exe-cache/x86_64-linux/Cabal-simple_mPHDZzAJ_3.2.1.0_ghc-8.10.4 --builddir=.stack-work/dist/x86_64-linux/Cabal-3.2.1.0 build --ghc-options ""
Process exited with code: ExitFailure 1


-- While building package haskell-igraph-0.8.5 (scroll up to its section to see the error) using:
/builds/gargantext/haskell-gargantext/.stack-root/setup-exe-cache/x86_64-linux/Cabal-simple_mPHDZzAJ_3.2.1.0_ghc-8.10.4 --builddir=.stack-work/dist/x86_64-linux/Cabal-3.2.1.0 build --ghc-options ""
Process exited with code: ExitFailure 1
Cleaning up file based variables
ERROR: Job failed: exit code 1
failed
docs Test
      /builds/gargantext/haskell-gargantext/.stack-root/setup-exe-cache/x86_64-linux/Cabal-simple_mPHDZzAJ_3.2.1.0_ghc-8.10.4 --builddir=.stack-work/dist/x86_64-linux/Cabal-3.2.1.0 build --ghc-options ""
Process exited with code: ExitFailure 1


-- While building package duckling-0.2.0.0 (scroll up to its section to see the error) using:
/builds/gargantext/haskell-gargantext/.stack-root/setup-exe-cache/x86_64-linux/Cabal-simple_mPHDZzAJ_3.2.1.0_ghc-8.10.4 --builddir=.stack-work/dist/x86_64-linux/Cabal-3.2.1.0 build --ghc-options ""
Process exited with code: ExitFailure 1
Cleaning up file based variables
ERROR: Job failed: exit code 1