feat(proxy-wasm) set querystring when setting ":path"

[hishamhm]

• tests(proxy-wasm) check that querystring works in dispatch_http_call - looks like setting the query passing :path to dispatch already worked; I added a test to verify this.
• feat(proxy-wasm) set querystring when setting ":path" - this one addresses the NYI, and includes some tests.
• refactor(proxy-wasm) rename call->uri to call->path - This third one is opinionated, feel free to keep or drop it. I just changed it to clarify that it matches ":path" (that is, path including querystring), making the field name match the pseudo-header, as is the case with the other entries in ngx_http_proxy_wasm_dispatch_s.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.82724%. Comparing base (9238d4a) to head (f22115b).
Report is 3 commits behind head on main.

Additional details and impacted files

@@                 Coverage Diff                 @@
##                main        #627         +/-   ##
===================================================
- Coverage   90.84180%   90.82724%   -0.01457%     
===================================================
  Files             52          52                 
  Lines          11214       11218          +4     
===================================================
+ Hits           10187       10189          +2     
- Misses          1027        1029          +2     

Files with missing lines	Coverage Δ
src/common/proxy_wasm/ngx_proxy_wasm_maps.c	93.54839% <100.00000%> (+0.07012%)	⬆️
src/http/proxy_wasm/ngx_http_proxy_wasm_dispatch.c	91.68704% <100.00000%> (ø)

... and 3 files with indirect coverage changes

Flag	Coverage Δ
unit	90.58310% <100.00000%> (+0.00287%)	⬆️
valgrind	82.41920% <76.92308%> (-0.08938%)	⬇️

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[hishamhm]

I tried to make tests 16 and 17 into a single test using --- request eval and ["GET /set_by_proxy_wasm", "GET /raw_nginx"]. That worked in isolation, but it messed up the plan_tests count.

[thibaultcha]

Merged!