Enable noUncheckedIndexedAccess for Runtime Utils

[RishhiB]

Enable noUncheckedIndexedAccess for Runtime Utils AB#8216

[msfluid-bot]

⯅ @fluid-example/bundle-size-tests: +369 Bytes

Metric Name	Baseline Size	Compare Size	Size Diff
aqueduct.js	455.4 KB	455.47 KB	⯅ +66 Bytes
azureClient.js	553.09 KB	553.17 KB	⯅ +80 Bytes
connectionState.js	680 Bytes	680 Bytes	■ No change
containerRuntime.js	256.72 KB	256.76 KB	⯅ +45 Bytes
fluidFramework.js	385.28 KB	385.29 KB	⯅ +14 Bytes
loader.js	134.1 KB	134.11 KB	⯅ +14 Bytes
map.js	42.17 KB	42.17 KB	⯅ +7 Bytes
matrix.js	145.43 KB	145.44 KB	⯅ +7 Bytes
odspClient.js	520.9 KB	520.98 KB	⯅ +80 Bytes
odspDriver.js	96.94 KB	96.96 KB	⯅ +21 Bytes
odspPrefetchSnapshot.js	42.23 KB	42.24 KB	⯅ +14 Bytes
sharedString.js	162.51 KB	162.52 KB	⯅ +7 Bytes
sharedTree.js	375.74 KB	375.75 KB	⯅ +7 Bytes
Total Size	3.25 MB	3.25 MB	⯅ +369 Bytes

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Baseline commit: c1602f38b19a6c0b484e1369ea8a20e66396bf54

Generated by :no_entry_sign: dangerJS against ad69db7728d8e29bdc0cf5fb2b0f95f74c051266