Release: bump version to 0.7.0 #1096

Job	Run time
generate-fstar	2m 10s
check-style	15s
test-lakers-python	57s
unit-tests (lakers-crypto/psa, ead-none)	54s
unit-tests-default	48s
unit-tests (lakers-crypto/psa, ead-authz)	55s
unit-tests (lakers-crypto/rustcrypto, ead-none)	44s
unit-tests (lakers-crypto/rustcrypto, ead-authz)	46s
build-coap-example	52s
build-example-for-cortex-m4 (crypto-psa)	1m 36s
build-lakers-c (crypto-rustcrypto)	1m 6s
build-edhoc-package (lakers-crypto/psa)	1m 21s
build-example-for-cortex-m4 (crypto-cryptocell310)	1m 11s
build-lakers-c (crypto-psa-baremetal)	1m 24s
build-lakers-c-example	1m 40s
build-edhoc-package (lakers-crypto/psa-baremetal)	1m 22s
build-lakers-c (crypto-cryptocell310)	1m 35s
build-edhoc-package (lakers-crypto/cryptocell310)	1m 10s
run-example-on-qemu (crypto-psa)	1m 35s
build-edhoc-package (lakers-crypto/rustcrypto)	1m 0s
release	0s
	23m 21s

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