fix(arr): recover lost fixtures and align provider names

The Podnapisi zip fixtures never reached the branch: a global gitignore
excludes *.zip, so git add skipped them silently and the worker's CI passed
against untracked files. Recovered, with a fixtures .gitignore that keeps
the next binary fixture from vanishing the same way.

Two providers landing in parallel also disagreed on names and on which
crate dependencies each integration-test target uses. PodnapisiProvider is
now Podnapisi, matching OpenSubtitles, and both test targets declare the
dependencies they do not use so the per-target lint stays quiet.

crates/arr-subs/tests/opensubtitles.rs

@@ -4,7 +4,10 @@
 
 // Same per-target quirk as in `lib.rs`: an integration test links the library's
 // dependencies without using them directly.
-use {arr_parse as _, reqwest as _, serde as _, thiserror as _, tracing as _};
+use {
+    arr_parse as _, chardetng as _, encoding_rs as _, reqwest as _, serde as _, thiserror as _,
+    tracing as _, zip as _,
+};
 
 use std::time::Duration;