Add TLS support for Memcached client #7625

Job	Run time
Lint	1m 6s
Test packages - pkg	2m 33s
Test packages - tempodb	10m 7s
Build	1m 34s
Test integration e2e suite	27m 2s
Test serverless integration e2e suite	6m 15s
Test packages - others	9m 27s
Test packages - tempodb/wal	7m 46s
Benchmark	8m 53s
Build technical documentation	20s
Check jsonnet & tempo-mixin	43s
Vendor check	1m 24s
	1h 17m 10s

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