fix(ops) free plan struct on ngx_wasm_ops_plan_destroy

[thibaultcha]

Fix #675

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.72299%. Comparing base (c2b0fb1) to head (b6050fa).
Report is 4 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main        #678         +/-   ##
===================================================
+ Coverage   90.71817%   90.72299%   +0.00481%     
===================================================
  Files             54          54                 
  Lines          11571       11577          +6     
  Branches        1711        1712          +1     
===================================================
+ Hits           10497       10503          +6     
  Misses          1068        1068                 
  Partials           6           6                 

Files with missing lines	Coverage Δ
src/wasm/ngx_wasm_ops.c	93.60902% <100.00000%> (+0.14748%)	⬆️

Flag	Coverage Δ
unit-ngx_1.21.6-wasmer-no_ipc-ssl-debug-no_hup-static	89.26236% <0.00000%> (-0.04099%)	⬇️
unit-ngx_1.27.3-v8-no_ipc-ssl-debug-no_hup-static	89.60280% <0.00000%> (-0.04189%)	⬇️
unit-ngx_1.27.3-wasmer-no_ipc-no_ssl-no_debug-no_hup-static	86.38451% <0.00000%> (-0.04291%)	⬇️
unit-ngx_1.27.3-wasmer-no_ipc-ssl-debug-no_hup-static	89.30136% <0.00000%> (-0.04121%)	⬇️
unit-ngx_1.27.3-wasmer-no_ipc-ssl-no_debug-no_hup-static	86.74787% <0.00000%> (-0.04228%)	⬇️
unit-ngx_1.27.3-wasmtime-ipc-no_ssl-debug-no_hup-static	88.87971% <0.00000%> (-0.03019%)	⬇️
unit-ngx_1.27.3-wasmtime-no_ipc-no_ssl-debug-no_hup-static-wasm32-unknown-unknown	88.28829% <0.00000%> (-0.04188%)	⬇️
unit-ngx_1.27.3-wasmtime-no_ipc-ssl-debug-hup-dynamic	88.30973% <0.00000%> (-0.06426%)	⬇️
unit-ngx_1.27.3-wasmtime-no_ipc-ssl-debug-hup-static	88.28525% <0.00000%> (-0.06438%)	⬇️
unit-openresty_1.27.1.1-wasmtime-no_ipc-ssl-debug-no_hup-dynamic	90.68800% <100.00000%> (+0.00396%)	⬆️
unit-openresty_1.27.1.1-wasmtime-no_ipc-ssl-debug-no_hup-static	90.66809% <100.00000%> (+0.00399%)	⬆️
valgrind-ngx_1.27.3-v8---debug-no_hup-static	33.16639% <0.00000%> (-0.02216%)	⬇️
valgrind-ngx_1.27.3-wasmer---debug-hup-static	80.40682% <0.00000%> (-0.05309%)	⬇️
valgrind-ngx_1.27.3-wasmer---debug-no_hup-static	80.48378% <0.00000%> (-0.05314%)	⬇️
valgrind-ngx_1.27.3-wasmtime---debug-no_hup-static	33.50372% <0.00000%> (-0.02236%)	⬇️
valgrind-openresty_1.27.1.1-wasmer---debug-no_hup-static	61.54624% <100.00000%> (+0.02333%)	⬆️

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