Use gcc and g++ 13 for CI tests

[var77]

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Benchmarks

metric	old	new	pct change
recall (after create)	0.958	0.957	-0.10%
recall (after insert)	0.000	0.000	-
select tps	21003.807	21561.405	+2.65%
select bulk(100) tps	40.628	40.317	-0.76%
select latency (ms)	0.923 ± 1.766𝜎	0.917 ± 1.661𝜎	-0.65%
select bulk(100) latency (ms)	745.264 ± 143.425𝜎	743.263 ± 141.902𝜎	-0.27%
create latency (ms)	338271.830	348762.804	+3.10%
insert tps	629.465	582.858	-7.40%
insert bulk(100) tps	6.689	6.245	-6.65%
insert latency (ms)	49.971 ± 16.086𝜎	54.066 ± 16.150𝜎	+8.19%
insert bulk(100) latency (ms)	4574.679 ± 238.813𝜎	4978.770 ± 195.513𝜎	+8.83%
disk usage (bytes)	8196194304.000	8196194304.000	-