SRE-142: Remove DeepSource

[indietyp]

🌟 What is the purpose of this PR?

Remove DeepSource integration and make sccache installation optional in CI workflows

🔍 What does this change?

• Removes the .deepsource.toml configuration file
• Makes sccache installation optional in the install-tools GitHub Action
• Adds a new sccache input parameter to the install-tools action (defaults to "true")
• Updates the bench workflow to avoid installing sccache twice
• Removes DeepSource test coverage upload from the test workflow
• Removes Vault secret retrieval for DeepSource from the test workflow

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

• do not affect the execution graph

🛡 What tests cover this?

• CI workflows will validate these changes automatically

❓ How to test this?

1. Checkout the branch
2. Verify CI workflows run successfully without DeepSource integration
3. Confirm that sccache is properly installed when needed

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Project	Deployment	Preview	Updated (UTC)
petrinaut	Error		Nov 18, 2025 8:46am

[indietyp]

• SRE-142: Remove DeepSource #8041 👈 (View in Graphite)
• main

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[deepsource-io]

Here's the code health analysis summary for commits d549b46..b8178a2. View details on DeepSource ↗.

Analysis Summary

Analyzer	Status	Summary	Link
JavaScript	✅ Success		View Check ↗
Secrets	✅ Success		View Check ↗
SQL	✅ Success		View Check ↗
Test coverage	⚠️ Artifact not reported	Timed out: Artifact was never reported	View Check ↗
Rust	✅ Success		View Check ↗
Shell	✅ Success		View Check ↗
Docker	✅ Success		View Check ↗

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 55.85%. Comparing base (081d3d4) to head (b8178a2).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #8041   +/-   ##
=======================================
  Coverage   55.85%   55.85%           
=======================================
  Files        1142     1142           
  Lines      105678   105678           
  Branches     4826     4826           
=======================================
+ Hits        59026    59027    +1     
+ Misses      45957    45956    -1     
  Partials      695      695           

Flag	Coverage Δ
apps.hash-ai-worker-ts	1.32% <ø> (ø)
apps.hash-api	0.00% <ø> (ø)
blockprotocol.type-system	40.84% <ø> (ø)
local.claude-hooks	0.00% <ø> (ø)
local.harpc-client	51.24% <ø> (ø)
local.hash-graph-sdk	10.88% <ø> (ø)
local.hash-isomorphic-utils	0.00% <ø> (ø)
rust.antsi	0.00% <ø> (ø)
rust.error-stack	90.85% <ø> (ø)
rust.harpc-codec	84.22% <ø> (ø)
rust.harpc-net	96.13% <ø> (+0.01%)	⬆️
rust.harpc-tower	66.80% <ø> (ø)
rust.harpc-types	0.00% <ø> (ø)
rust.harpc-wire-protocol	92.23% <ø> (ø)
rust.hash-codec	71.25% <ø> (ø)
rust.hash-graph-api	2.89% <ø> (ø)
rust.hash-graph-authorization	62.50% <ø> (ø)
rust.hash-graph-postgres-store	25.62% <ø> (ø)
rust.hash-graph-store	30.70% <ø> (ø)
rust.hash-graph-temporal-versioning	47.68% <ø> (ø)
rust.hash-graph-types	0.00% <ø> (ø)
rust.hash-graph-validation	83.29% <ø> (ø)
rust.hashql-ast	87.17% <ø> (ø)
rust.hashql-compiletest	48.96% <ø> (ø)
rust.hashql-core	81.01% <ø> (ø)
rust.hashql-diagnostics	72.28% <ø> (ø)
rust.hashql-eval	68.56% <ø> (ø)
rust.hashql-hir	88.92% <ø> (ø)
rust.hashql-mir	54.38% <ø> (ø)
rust.hashql-syntax-jexpr	93.94% <ø> (ø)

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