[1/7] gnu: aws-c-common: Update to 0.5.1.
[2/7] gnu: aws-checksums: Update to 0.1.11.
[3/7] gnu: Add aws-c-cal.
[4/7] gnu: Add s2n.
[5/7] gnu: Add aws-c-io.
[6/7] gnu: aws-c-event-stream: Update to 0.2.6.
[7/7] gnu: aws-sdk-cpp: Update to 1.8.148.