[Bug] Compiler warnings after 311a0c5

Thank you for the bug report

[X] I am using the latest version of doom-modeline related packages.
[X] I checked FAQ.
[X] You may also try reproduce the issue using clean environment and minimal configurations with the command emacs -Q.

Bug description

After the commit 311a0c5, compiler says:

In end of data:
doom-modeline-segments.el:3130:27: Warning: the function ‘svg-image’ is not
    known to be defined.
doom-modeline-segments.el:3106:6: Warning: the function ‘svg-line’ is not
    known to be defined.
doom-modeline-segments.el:3102:6: Warning: the function ‘svg-circle’ is not
    known to be defined.
doom-modeline-segments.el:3101:15: Warning: the function ‘svg-create’ is not
    known to be defined.

Steps to reproduce

Start Emacs with -Q, byte-compile the files and check the *Compile-Log* buffer.

Expected behavior

No compiler warnings.

OS

MacOS

Emacs Version

30 (gccemacs)

Emacs Configurations

No response

Error callstack

N/A

Anything else

You can silence this by adding (which I haven't tested):

(eval-when-compile
  (require 'svg))

at the beginning of doom-modeline-segments.el, or declare the functions. Which one is a matter of taste.

seagle0128 / doom-modeline

[Bug] Compiler warnings after 311a0c5 #702