Improve CI cache usage (#6868)

* Update third-party actions to latest version

* Use vcpkg in manifest mode

* Only trim ccache after build

* Use ccache with MSVC

* Use Brewfile and cache Homebrew downloads

* Use --print-config for ccache 3

* Attempt to make ccache actually work with MSVC

* Zero ccache stats before building

* Use SDL2 on macOS

vcpkg.json

@@ -0,0 +1,77 @@
+{
+	"$schema": "https://raw.githubusercontent.com/microsoft/vcpkg-tool/main/docs/vcpkg.schema.json",
+	"dependencies": [
+		{
+			"name": "fftw3",
+			"default-features": false,
+			"features": [
+				"sse",
+				"sse2",
+				"avx",
+				"avx2"
+			]
+		},
+		{
+			"name": "fltk",
+			"default-features": false
+		},
+		{
+			"name": "fluidsynth",
+			"default-features": false,
+			"features": [
+				"sndfile"
+			]
+		},
+		{
+			"name": "libogg",
+			"default-features": false
+		},
+		{
+			"name": "libsamplerate",
+			"default-features": false
+		},
+		{
+			"name": "libsndfile",
+			"default-features": false,
+			"features": [
+				"external-libs",
+				"mpeg"
+			]
+		},
+		{
+			"name": "libstk",
+			"default-features": false
+		},
+		{
+			"name": "libvorbis",
+			"default-features": false
+		},
+		{
+			"name": "lilv",
+			"default-features": false
+		},
+		{
+			"name": "lv2",
+			"default-features": false
+		},
+		{
+			"name": "mp3lame",
+			"default-features": false
+		},
+		{
+			"name": "portaudio",
+			"default-features": false
+		},
+		{
+			"name": "sdl2",
+			"default-features": false,
+			"features": [
+				"base"
+			]
+		},
+		{
+			"name": "zlib",
+			"default-features": false
+		}
+	]
+}