Fix path traversal vulnerability detection on close

[uurien]

What does this PR do?

We have detected that an extra vulnerability was reported on dir.close function when the open was already vulnerable point. This PR prevents this double detection.

Plugin Checklist

• Unit tests.

[github-actions]

Overall package size

Self size: 4.13 MB
Deduped: 58.26 MB
No deduping: 58.31 MB

Dependency sizes

name	version	self size	total size
@datadog/pprof	2.2.1	14.24 MB	15.12 MB
@datadog/native-iast-taint-tracking	1.4.1	14.85 MB	14.86 MB
@datadog/native-appsec	3.1.0	13.31 MB	13.32 MB
protobufjs	7.1.2	2.76 MB	6.55 MB
@datadog/native-iast-rewriter	2.0.1	2.09 MB	2.1 MB
@datadog/native-metrics	2.0.0	898.77 kB	1.3 MB
opentracing	0.14.7	194.81 kB	194.81 kB
semver	7.3.8	88.2 kB	118.6 kB
@datadog/sketches-js	2.1.0	109.9 kB	109.9 kB
lodash.sortby	4.7.0	75.76 kB	75.76 kB
lru-cache	7.14.0	74.95 kB	74.95 kB
ipaddr.js	2.0.1	59.52 kB	59.52 kB
ignore	5.2.0	48.87 kB	48.87 kB
import-in-the-middle	1.3.5	34.34 kB	38.81 kB
istanbul-lib-coverage	3.2.0	29.34 kB	29.34 kB
retry	0.10.1	27.44 kB	27.44 kB
lodash.uniq	4.5.0	25.01 kB	25.01 kB
limiter	1.1.5	23.17 kB	23.17 kB
lodash.kebabcase	4.1.1	17.75 kB	17.75 kB
lodash.pick	4.4.0	16.33 kB	16.33 kB
node-abort-controller	3.0.1	14.33 kB	14.33 kB
crypto-randomuuid	1.0.0	11.18 kB	11.18 kB
diagnostics_channel	1.1.0	7.07 kB	7.07 kB
path-to-regexp	0.1.7	6.78 kB	6.78 kB
koalas	1.0.2	6.47 kB	6.47 kB
methods	1.1.2	5.29 kB	5.29 kB
module-details-from-path	1.0.3	4.47 kB	4.47 kB

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[codecov]

Codecov Report

Merging #3172 (8627c97) into master (3428a1f) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master    #3172      +/-   ##
==========================================
+ Coverage   86.95%   86.97%   +0.02%     
==========================================
  Files         322      322              
  Lines       11763    11765       +2     
  Branches       33       33              
==========================================
+ Hits        10228    10233       +5     
+ Misses       1535     1532       -3     

Impacted Files	Coverage Δ
...c/appsec/iast/analyzers/path-traversal-analyzer.js	100.00% <100.00%> (ø)

... and 2 files with indirect coverage changes

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[pr-commenter]

Benchmarks

Comparing candidate commit 8627c97 in PR branch ugaitz/improve-path-traversal-detection with baseline commit 3428a1f in branch master.

Found 0 performance improvements and 0 performance regressions! Performance is the same for 445 metrics, 27 unstable metrics.