chore: remove all code warnings

[sdht0]

Currently, these warnings appear on the latest version of gcc.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.66%. Comparing base (48d4611) to head (2ea92b3).
Report is 2 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5471      +/-   ##
==========================================
- Coverage   86.67%   86.66%   -0.01%     
==========================================
  Files        1419     1419              
  Lines       62220    62218       -2     
  Branches     7636     7631       -5     
==========================================
- Hits        53930    53923       -7     
- Misses       8111     8115       +4     
- Partials      179      180       +1     

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[github-actions]

Benchmark Result

Master commit hash: 412d632e0880ae212a1995717b4e66434e5edce9
Branch commit hash: e8e9dd17de2105519544a64f07743440343feb0b

Query Group	Query Name	Mean Time - Commit (ms)	Mean Time - Master (ms)	Diff
aggregation	q24	664.48	678.68	-14.19 (-2.09%)
aggregation	q28	6535.89	6510.43	25.46 (0.39%)
filter	q14	59.61	60.91	-1.30 (-2.13%)
filter	q15	63.17	61.79	1.37 (2.22%)
filter	q16	274.13	276.09	-1.96 (-0.71%)
filter	q17	380.13	380.40	-0.28 (-0.07%)
filter	q18	1854.81	1866.10	-11.28 (-0.60%)
filter	zonemap-node	22.42	22.41	0.01 (0.05%)
filter	zonemap-node-lhs-cast	22.15	23.00	-0.85 (-3.72%)
filter	zonemap-node-null	21.96	22.72	-0.76 (-3.36%)
filter	zonemap-rel	5724.22	5819.87	-95.64 (-1.64%)
fixed_size_expr_evaluator	q07	631.50	619.27	12.23 (1.97%)
fixed_size_expr_evaluator	q08	908.23	909.85	-1.62 (-0.18%)
fixed_size_expr_evaluator	q09	912.59	902.46	10.13 (1.12%)
fixed_size_expr_evaluator	q10	198.60	191.04	7.56 (3.96%)
fixed_size_expr_evaluator	q11	199.72	190.10	9.62 (5.06%)
fixed_size_expr_evaluator	q12	175.41	167.44	7.97 (4.76%)
fixed_size_expr_evaluator	q13	1530.81	1529.94	0.87 (0.06%)
fixed_size_seq_scan	q23	56.40	44.74	11.66 (26.07%)
join	q29	793.75	769.73	24.02 (3.12%)
join	q30	1622.87	1570.87	52.00 (3.31%)
join	q31	5.47	5.29	0.18 (3.42%)
join	SelectiveTwoHopJoin	44.32	46.20	-1.88 (-4.07%)
ldbc_snb_ic	q35	9.29	10.24	-0.95 (-9.30%)
ldbc_snb_ic	q36	80.34	87.04	-6.70 (-7.70%)
ldbc_snb_is	q32	2.48	3.09	-0.61 (-19.75%)
ldbc_snb_is	q33	10.47	13.31	-2.84 (-21.35%)
ldbc_snb_is	q34	1.27	1.24	0.04 (3.02%)
limit	push-down-limit-into-distinct	2010.68	1947.34	63.34 (3.25%)
multi-rel	multi-rel-large-scan	1794.63	1690.19	104.44 (6.18%)
multi-rel	multi-rel-lookup	4.77	6.25	-1.48 (-23.65%)
multi-rel	multi-rel-small-scan	185.30	205.09	-19.79 (-9.65%)
order_by	q25	69.46	64.74	4.72 (7.29%)
order_by	q26	380.35	402.11	-21.76 (-5.41%)
order_by	q27	1308.95	1318.99	-10.03 (-0.76%)
recursive_join	recursive-join-bidirection	378.67	365.51	13.15 (3.60%)
recursive_join	recursive-join-dense	7063.37	7066.79	-3.42 (-0.05%)
recursive_join	recursive-join-path	23227.94	23095.24	132.70 (0.57%)
recursive_join	recursive-join-sparse	10.10	10.09	0.01 (0.13%)
recursive_join	recursive-join-trail	6959.89	7062.81	-102.92 (-1.46%)
scan_after_filter	q01	101.60	101.14	0.45 (0.45%)
scan_after_filter	q02	89.30	89.18	0.13 (0.14%)
shortest_path_ldbc100	q37	77.56	73.13	4.43 (6.05%)
shortest_path_ldbc100	q38	331.18	304.53	26.65 (8.75%)
shortest_path_ldbc100	q39	90.49	68.88	21.61 (31.38%)
shortest_path_ldbc100	q40	505.16	504.71	0.44 (0.09%)
var_size_expr_evaluator	q03	2044.84	2040.18	4.66 (0.23%)
var_size_expr_evaluator	q04	2180.27	2414.28	-234.01 (-9.69%)
var_size_expr_evaluator	q05	2630.04	2608.75	21.29 (0.82%)
var_size_expr_evaluator	q06	1276.05	1285.92	-9.87 (-0.77%)
var_size_seq_scan	q19	1347.30	1357.26	-9.96 (-0.73%)
var_size_seq_scan	q20	2473.99	2653.19	-179.20 (-6.75%)
var_size_seq_scan	q21	2202.27	2261.21	-58.93 (-2.61%)
var_size_seq_scan	q22	108.62	109.70	-1.08 (-0.98%)