Component secretstores.local.file support to read UTF8-BOM

[owns]

Describe the feature

Component type secretstores.local.file can read a file with UTF8-BOM encoding.
Currently, the initialization will fail:

2024-10-23T16:24:46.7830000 time="2024-10-23T11:24:46.7838666-05:00" level=fatal msg="Fatal error from runtime: process component my-secretstore error: [INIT_COMPONENT_FAILURE]: initialization error occurred for my-secretstore (secretstores.local.file/v1): [INIT_COMPONENT_FAILURE]: initialization error occurred for my-secretstore (secretstores.local.file/v1): invalid character 'ï' looking for beginning of value" app_id=my-worker instance=NAZUSL3HN3Q04 scope=dapr.runtime type=log ver=1.14.4

Changing the encoding to UTF8 (no BOM) fixes the error.
A similar bug was reported: dapr/dapr project issue 3900

Release Note

RELEASE NOTE:
ADD: secretstore component type secretstores.local.file support file encoding UTF8 BOM.