Remove TLS 1.x from default list of supported protocols

[ycombinator]

• remove TLSv1.0 and TLSv1.1 as default supported protocols in the TLS configuration sections for for Elastic Agent.
• remove TLSv1.0 as a supported config option entirely, so that only TLSv1.1 could be manually added back into the list of supported protocols.

[jsoriano]

• remove TLSv1.0 and TLSv1.1 as default supported protocols in the TLS configuration sections for for Elastic Agent.

Marking this first point as done. Package Registry relies on Go for its TLS defaults, and Go sets the minimum version by default to 1.2 since Go 1.22.

It would be pending to remove 1.0 as a valid option from here:

package-registry/flags.go

Line 17 in 0e4c38f

"1.0": tls.VersionTLS10,