Snakemake version
8.0.1, also tested the main branch. Snakemake 7.32.4 does not have the bug.

Describe the bug
Passing an f-string to the shell command results in an error message similar to the following one:

SyntaxError in file /Users/tsnorri/snakemake-bug-test/Snakefile, line 7:
unterminated f-string literal (detected at line 7) (Snakefile, line 7)

Minimal example

rule all:
	shell:	f"echo 'test'"

Snakemake 8.0.1 accepts the input if the f-string is changed to a plain one.

Additional context
The second example on the page Snakefiles and Rules in Snakemake’s documentation demonstrates the use of an f-string with the shell command.