Leaflet v1.5.1 patched with PR 6522

[ac-61]

This updates the MMGIS Leaflet with the fix in Leaflet/Leaflet#6522, which fixes our issues when using the georaster-layer-for-leaflet library. Making this a separate pull request in case we need to revert it in the future.

Build instructions

# Clone Leaflet repository
git clone git@github.com:Leaflet/Leaflet.git

# Checkout the version that MMGIS's Leaflet is using
git checkout v1.5.1

# Create new branch with the head on the current MMGIS Leaflet version
git checkout -b v1.5.1_patch

# Pull PR 6522 as a new branch
git fetch origin pull/6522/head:pr_6522

# Merge to branch
git merge pr_6522

# Build v1.5.1
yarn install --registry https://registry.yarnpkg.com/
yarn run rollup

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud