add e2e tests

[codecov[bot]]

Codecov Report

Merging #3 (c5d0c21) into main (8f14a01) will increase coverage by 2.57%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main       #3      +/-   ##
==========================================
+ Coverage   60.97%   63.54%   +2.57%     
==========================================
  Files          10       15       +5     
  Lines         246      417     +171     
==========================================
+ Hits          150      265     +115     
- Misses         72      123      +51     
- Partials       24       29       +5     

Impacted Files	Coverage Δ
internal/ebpf/testing.go	91.93% <100.00%> (+1.02%)	:arrow_up:
cmd/durdur/undrop.go	16.27% <0.00%> (ø)
cmd/durdur/detach.go	100.00% <0.00%> (ø)
cmd/durdur/drop.go	76.36% <0.00%> (ø)
cmd/durdur/main.go	73.33% <0.00%> (ø)
cmd/durdur/attach.go	90.32% <0.00%> (ø)

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