Add explicit read permissions to workflows #201

Job	Run time
Unit tests / Construct unit test matrix	5s
Release builds / Construct release build matrix	5s
Cxx interop / Construct Cxx interop matrix	6s
Static SDK / Construct Static SDK matrix	4s
Soundness / License headers check	7s
Soundness / Unacceptable language check	6s
Soundness / API breakage check	4m 30s
Soundness / Documentation check	3m 29s
Soundness / YAML lint check	5s
Soundness / Format check	1m 0s
Soundness / Broken symlinks check	5s
Soundness / Python lint check	6s
Soundness / Shell check	40s
Release builds / Release builds / Linux (6.0)	4m 7s
Release builds / Release builds / Linux (nightly-next)	4m 50s
Release builds / Release builds / Linux (6.2)	4m 13s
Release builds / Release builds / Linux (nightly-main)	4m 50s
Release builds / Release builds / Linux (6.1)	4m 6s
Release builds / Release builds / Linux (5.10)	3m 38s
Static SDK / Static SDK / Linux (main Jammy)	4m 40s
Static SDK / Static SDK / Linux (latest-release Jammy)	3m 38s
Unit tests / Unit tests / Linux (5.10)	5m 12s
Unit tests / Unit tests / Linux (nightly-main)	6m 3s
Unit tests / Unit tests / Linux (6.0)	5m 53s
Unit tests / Unit tests / Linux (6.2)	5m 35s
Unit tests / Unit tests / Linux (nightly-next)	6m 34s
Unit tests / Unit tests / Linux (6.1)	5m 25s
Cxx interop / Cxx interop / Linux (5.10)	2m 43s
Cxx interop / Cxx interop / Linux (6.1)	3m 7s
Cxx interop / Cxx interop / Linux (6.2)	3m 24s
Cxx interop / Cxx interop / Linux (6.0)	3m 16s
Cxx interop / Cxx interop / Linux (nightly-next)	3m 53s
Cxx interop / Cxx interop / Linux (nightly-main)	4m 14s
	1h 39m 49s

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