Tls min version

[jsirianni]

Description of Changes

Golang's crypto/tls defaults to a minimum version of tls 1.0. This allows any modern client to connect without issue. A restricted environment may require a minimum version of 1.2 or 1.3. This PR allows the user to specify a minimum supported version.

• Added min_version parameter for the tls configuration
• Documented TLS configuration

Resolves #349

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.482797	-0.051807523	131.69922	-2.3003845
1	5000	5.2242866	+0.22426271	140.01535	+1.727768
1	10000	10.258737	-0.24145985	144.09456	-1.2337036
1	50000	50.741283	+0.5165062	172.07475	-6.79216
1	100000	99.78102	+5.468277	237.77277	+6.901947
10	100	1.9827248	+0.051662445	132.93494	+0.41540527
10	500	6.172565	+0.1896863	139.1161	-2.8112946
10	1000	12.0346985	+1.2070751	148.37218	+1.8178864
10	5000	57.73127	+4.8517876	181.43764	+1.5689697
10	10000	106.08623	-3.8731232	221.6091	-10.073547

[codecov]

Codecov Report

Merging #400 (cb04e71) into master (47e0a8b) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master     #400   +/-   ##
=======================================
  Coverage   73.25%   73.25%           
=======================================
  Files         124      124           
  Lines        7999     8011   +12     
=======================================
+ Hits         5859     5868    +9     
- Misses       1639     1645    +6     
+ Partials      501      498    -3     

Impacted Files	Coverage Δ
operator/builtin/input/tcp/tcp.go	78.57% <100.00%> (+2.01%)	⬆️
operator/builtin/output/otlp/otlp.go	64.84% <0.00%> (-3.30%)	⬇️

---

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[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.4483001	-0.086304426	128.42497	-5.5746307
1	5000	5.1724963	+0.17247248	137.90248	-0.38510132
1	10000	10.482979	-0.017217636	145.83176	+0.50349426
1	50000	49.725174	-0.49960327	175.7632	-3.103714
1	100000	97.53961	+3.2268677	235.27505	+4.404236
10	100	2.0690901	+0.13802779	132.65706	+0.13752747
10	500	5.8104067	-0.172472	139.86476	-2.0626373
10	1000	13.345135	+2.5175114	145.70502	-0.8492737
10	5000	54.788715	+1.9092331	181.7566	+1.8879395
10	10000	111.062355	+1.1030045	229.57059	-2.1120605