chore: Added cron job to check for upstream changes to vendored in code

[jamescrosswell]

Resolves #4995

• Create watch on upstream repositories that we've vendored in #4995

Notes for testing

All the github workflow does is run the script on a cron schedule, passing it some parameters. The script can be tested locally by running:

export GH_TOKEN="$(gh auth token)"
export GH_REPO="getsentry/sentry-dotnet"
./scripts/watch-upstream.sh dotnet/android tools/assembly-store-reader-mk2 src/Sentry.Android.AssemblyReader/

... that assumes you're logged into the github cli locally.

Important

The script will create one (and only one) issue for every upstream change it detects affecting the configured source tree. For testing, it created this issue:

• Upstream change detected: dotnet/android tools/assembly-store-reader-mk2 @ 740256f #5001
  ... so it's not going to do anything again until we see a new commit affecting that source tree.

#skip-changelog

[github-actions]

Semver Impact of This PR

⚪ None (no version bump detected)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.06%. Comparing base (ec307a7) to head (b8a07bb).
⚠️ Report is 36 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5000      +/-   ##
==========================================
+ Coverage   73.90%   74.06%   +0.16%     
==========================================
  Files         497      497              
  Lines       17957    17969      +12     
  Branches     3516     3517       +1     
==========================================
+ Hits        13271    13309      +38     
+ Misses       3825     3800      -25     
+ Partials      861      860       -1     

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

Bugbot Autofix prepared a fix for the issue found in the latest run.

• ✅ Fixed: Backslash path separators inconsistent with all existing entries
  • Replaced the three backslash-based File Path entries in Sentry.slnx and .generated.NoMobile.slnx with forward slashes to match existing solution path conventions and cross-platform resolution behavior.

Or push these changes by commenting:

@cursor push acacc38d1e

Preview (acacc38d1e)

diff --git a/.generated.NoMobile.slnx b/.generated.NoMobile.slnx
--- a/.generated.NoMobile.slnx
+++ b/.generated.NoMobile.slnx
@@ -33,7 +33,7 @@
     <File Path=".github/workflows/update-deps.yml" />
     <File Path=".github/workflows/vulnerabilities.yml" />
     <File Path=".github/workflows/playwright-blazor-wasm.yml" />
-    <File Path=".github\workflows\watch-upstream.yml" />
+    <File Path=".github/workflows/watch-upstream.yml" />
   </Folder>
   <Folder Name="/benchmarks/">
     <Project Path="benchmarks/Sentry.Benchmarks/Sentry.Benchmarks.csproj" />

diff --git a/Sentry.slnx b/Sentry.slnx
--- a/Sentry.slnx
+++ b/Sentry.slnx
@@ -33,7 +33,7 @@
     <File Path=".github/workflows/update-deps.yml" />
     <File Path=".github/workflows/vulnerabilities.yml" />
     <File Path=".github/workflows/playwright-blazor-wasm.yml" />
-    <File Path=".github\workflows\watch-upstream.yml" />
+    <File Path=".github/workflows/watch-upstream.yml" />
   </Folder>
   <Folder Name="/benchmarks/">
     <Project Path="benchmarks/Sentry.Benchmarks/Sentry.Benchmarks.csproj" />
@@ -121,7 +121,7 @@
     <File Path="scripts/update-cli.ps1" />
     <File Path="scripts/update-java.ps1" />
     <File Path="scripts/update-project-xml.ps1" />
-    <File Path="scripts\watch-upstream.sh" />
+    <File Path="scripts/watch-upstream.sh" />
   </Folder>
   <Folder Name="/src/">
     <File Path="src/Directory.Build.props" />

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