Merge v1.19 into master

[mongodb-php-bot]

Merge new changes from v1.19 into master.

Commits

• PHPC-2422: Update libmongoc to 1.27.5 (PHPC-2422: Update libmongoc to 1.27.5 #1619): 03f72d4

Resolving conflicts

To resolve any conflicts, check out the temporary branch and run the following command:

git merge master

Ignoring changes

To ignore from the remote branch, first reset the temporary branch to master and manually merge using the `ours` merge strategy:

git reset --hard master
git merge --strategy=ours v1.19

Then, push the temporary branch to upate the pull request.

[alcaeus]

@GromNaN I'll have to manually update this due to master already having a newer libmongoc version. I'll do that later today.