Python Lint failing on CI, blocking merges

[AaronFriel]

Jobs have begun failing with errors in linting the Python SDK, specifically failing on running mypy: https://github.com/pulumi/pulumi/actions/runs/3624968763/jobs/6112540141

Logs:

. venv/*/activate && \
	MYPYPATH=./stubs python -m mypy ./lib/pulumi --config-file=mypy.ini
lib/pulumi/runtime/invoke.py:[19](https://github.com/pulumi/pulumi/actions/runs/3624968763/jobs/6112540141#step:16:22)0: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs  [annotation-unchecked]
lib/pulumi/runtime/invoke.py:236: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs  [annotation-unchecked]
lib/pulumi/runtime/invoke.py:251: note: By default the bodies of untyped functions are not checked, consider using --check-untyped-defs  [annotation-unchecked]
lib/pulumi/runtime/rpc.py:5[21](https://github.com/pulumi/pulumi/actions/runs/3624968763/jobs/6112540141#step:16:24): error: Argument 1 to "FileAsset" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "Union[str, PathLike[Any]]"  [arg-type]
lib/pulumi/runtime/rpc.py:5[23](https://github.com/pulumi/pulumi/actions/runs/3624968763/jobs/6112540141#step:16:26): error: Argument 1 to "StringAsset" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:5[25](https://github.com/pulumi/pulumi/actions/runs/3624968763/jobs/6112540141#step:16:28): error: Argument 1 to "RemoteAsset" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:534: error: Argument 1 to "FileArchive" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:536: error: Argument 1 to "RemoteArchive" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:577: error: Argument 1 to "_parse_urn" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:586: error: Argument 2 to "get_resource_package" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:589: error: Argument 3 to "construct_provider" of "ResourcePackage" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:592: error: Argument 3 to "get_resource_module" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:594: error: Argument 3 to "construct" of "ResourceModule" has incompatible type "Union[Struct, ListValue, str, float, bool, None]"; expected "str"  [arg-type]
lib/pulumi/runtime/rpc.py:601: error: Incompatible return value type (got "Union[Struct, ListValue, str, float, bool, None]", expected "Resource")  [return-value]

[pulumi-bot]

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