don't call os.NewFile on unknown FDs

[jbardin]

os.NewFile was called on file descriptors 3, 4, and 5 during every init,
in case this process happened to be running inside panicwrap. If the
runtime has already chosen one of these file descriptors to use
internally, starting polling on them can cause the runtime to crash.

Initialize the file descriptors lazily, only if we know that they belong
to us, after Wrapped is checked.

Fixes #24287

[codecov]

Codecov Report

Merging #24562 into master will increase coverage by 0.01%.
The diff coverage is 88.54%.

Impacted Files	Coverage Δ
terraform/graph_builder_eval.go	0.00% <0.00%> (ø)
terraform/graph_builder_refresh.go	100.00% <ø> (ø)
terraform/node_resource_destroy.go	76.59% <ø> (-2.11%)	⬇️
terraform/transform_orphan_resource.go	79.31% <ø> (-3.51%)	⬇️
terraform/transform_provider.go	80.19% <ø> (-0.25%)	⬇️
terraform/node_local.go	66.03% <50.00%> (-1.31%)	⬇️
terraform/node_module_variable.go	72.52% <50.00%> (-1.04%)	⬇️
terraform/node_output.go	66.08% <50.00%> (-0.58%)	⬇️
terraform/node_module_expand.go	85.54% <84.61%> (-0.83%)	⬇️
terraform/node_resource_apply.go	83.33% <87.50%> (+1.51%)	⬆️
... and 15 more

[ghost]

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