chore: Upgraded references in github workflows

[ebadiere]

This PR updates the references to node from v18 to v20.

Related issue(s):

Fixes #1008

[github-actions]

Test Results

 16 files  ±0   83 suites  ±0   12m 0s ⏱️ +10s
294 tests +5  288 ✅ +8  6 💤 ±0  0 ❌  - 3 
303 runs  ±0  296 ✅ +3  7 💤 ±0  0 ❌  - 3 

Results for commit 9c0a386. ± Comparison against base commit 25b0c33.

This pull request removes 1 and adds 6 tests. Note that renamed tests count towards both.

"before each" hook for "Should burn token" ‑ @OZERC1155Token Test Suite "before each" hook for "Should burn token"

Should NOT allow a non-operator to transfer tokens to another account ‑ @OZERC1155Token Test Suite Should NOT allow a non-operator to transfer tokens to another account
Should NOT burn insufficient amount of token ‑ @OZERC1155Token Test Suite Should NOT burn insufficient amount of token
Should allow an operator to transfer a token to another account ‑ @OZERC1155Token Test Suite Should allow an operator to transfer a token to another account
Should allow an operator to transfer tokens in batch to another account ‑ @OZERC1155Token Test Suite Should allow an operator to transfer tokens in batch to another account
Should burn token in batch ‑ @OZERC1155Token Test Suite Should burn token in batch
Should burn token ‑ @OZERC1155Token Test Suite Should burn token