ci: fix nonexistent actions/upload-artifact SHA pin (Refs standards#48)

[hyperpolymath]

Bulk remediation for hyperpolymath/standards#48.

actions/upload-artifact was pinned to 65c79d7f54e76e4e3c7a8f34db0f4ac8b515c478 which does not exist in actions/upload-artifact, breaking every affected workflow at Set up job. Replaced with the real v4.6.2 SHA ea165f8d65b6e75b540449e92b4886f43607fa02 (the pin already used by the canonical rsr-template-repo / v3-templater generators).

SHA-only replacement; pre-existing version comments left intact (cosmetic).

Refs hyperpolymath/standards#48 — per standards#66 protocol this PR uses Refs (not Closes); joint-close only on explicit agreement.

🤖 Generated with Claude Code

[github-actions]

🔍 Hypatia Security Scan

Findings: 41 issues detected

Severity	Count
🔴 Critical	12
🟠 High	19
🟡 Medium	10

⚠️ Action Required: Critical security issues found!

View findings

[
  {
    "reason": "Stray AI.a2ml in root -- use 0-AI-MANIFEST.a2ml only",
    "type": "banned",
    "file": "AI.a2ml",
    "action": "delete",
    "rule_module": "root_hygiene",
    "severity": "high"
  },
  {
    "reason": "Superseded by 0-AI-MANIFEST.a2ml",
    "type": "banned",
    "file": "AI.djot",
    "action": "delete",
    "rule_module": "root_hygiene",
    "severity": "high"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/example/smoke_driver.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/cli.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/mod.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/lib/compile.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/lib/runner.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-deno-test/lib/discover.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "TypeScript file detected -- banned language",
    "type": "banned_language_file",
    "file": "/home/runner/work/affinescript/affinescript/packages/affine-js/types.d.ts",
    "action": "flag",
    "rule_module": "cicd_rules",
    "severity": "critical"
  },
  {
    "reason": "Admitted leaves proof hole (1 occurrences, CWE-704)",
    "type": "admitted",
    "file": "/home/runner/work/affinescript/affinescript/affinescript-vite/verification/proofs/coq/TypeSafety.v",
    "action": "flag",
    "rule_module": "code_safety",
    "severity": "critical"
  }
]

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