sdl_net: add v2.2.0, bump sdl

[valgur]

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[github-actions]

This pull request has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions]

Hooks produced the following warnings for commit bba2850

sdl_net/2.2.0@#6eb424072ac74faeea9ad5ce4f21370a

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreServices' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreGraphics' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'AppKit' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreFoundation' but it is not in cpp_info.frameworks.

sdl_net/2.0.1@#acc702edaa5ff6eadd0b417252aa87cb

post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'AppKit' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreServices' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreFoundation' but it is not in cpp_info.frameworks.
post_package(): WARN: [MISSING SYSTEM LIBS (KB-H043)] Library './lib/libSDL2_net.dylib' links to system library 'CoreGraphics' but it is not in cpp_info.frameworks.

[conan-center-bot]

Conan v1 pipeline ✔️

All green in build 2 (bba2850076d0db9668d535b227b14791df6dfb14):

• sdl_net/2.2.0:
  All packages built successfully! (All logs)

• sdl_net/2.0.1:
  All packages built successfully! (All logs)

---

Conan v2 pipeline ✔️

Note: Conan v2 builds are now mandatory. Please read our discussion about it.

All green in build 2 (bba2850076d0db9668d535b227b14791df6dfb14):

• sdl_net/2.2.0:
  All packages built successfully! (All logs)

• sdl_net/2.0.1:
  All packages built successfully! (All logs)