Curves: start homogeneizing cargo toml #2950

Job	Run time
List directories for parallelizing tests	3s
Check no_std	2m 46s
Check Documentation	32s
Check (stable)	16s
Check Style	9s
Test (stable)	9m 36s
Check (nightly)	11s
Test assembly	8m 27s
Test (nightly)	17m 28s
Test (cp6_782/)	8s
Test (mnt4_753/)	6s
Test (mnt6_753/)	10s
Test (./ed_on_bls12_377)	2s
Test (./secq256k1)	1s
Test (./bn254)	3s
Test (./grumpkin)	1s
Test (./ed25519)	1s
Test (./ed_on_mnt4_753)	1s
Test (./bls12_377)	3s
Test (./bls12_381)	8s
Test (./ed_on_bw6_761)	1s
Test (./mnt4_298)	1s
Test (./ed_on_bls12_381)	1s
Test (./secp384r1)	1s
Test (./ed_on_mnt4_298)	1s
Test (./secp256k1)	1s
Test (./curve25519)	5s
Test (./mnt6_298)	1s
Test (./ed_on_bls12_381_bandersnatch)	8s
Test (./secp256r1)	1s
Test (./pallas)	1s
Test (./bw6_761)	6s
Test (./vesta)	1s
Test (./ed_on_bn254)	1s
Test (./ed_on_cp6_782)	1s
Test (./bw6_767)	5s
	40m 48s

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