Bump the ci-deps group with 2 updates

Bumps the ci-deps group with 2 updates: [flatpak/flatpak-github-actions](https://github.com/flatpak/flatpak-github-actions) and [actions/setup-node](https://github.com/actions/setup-node).


Updates `flatpak/flatpak-github-actions` from 6.5 to 6.6
- [Release notes](https://github.com/flatpak/flatpak-github-actions/releases)
- [Commits](https://github.com/flatpak/flatpak-github-actions/compare/v6.5...92ae9851ad316786193b1fd3f40c4b51eb5cb101)

Updates `actions/setup-node` from 5 to 6
- [Release notes](https://github.com/actions/setup-node/releases)
- [Commits](https://github.com/actions/setup-node/compare/v5...v6)

---
updated-dependencies:
- dependency-name: flatpak/flatpak-github-actions
  dependency-version: '6.6'
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: ci-deps
- dependency-name: actions/setup-node
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: ci-deps
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/linux_build_flatpak.yml

@@ -129,7 +129,7 @@ jobs:
 
       - name: Push to Flathub (beta)
         if: ${{ inputs.publish == true && (inputs.stableBuild == false || inputs.stableBuild == 'false') }}
-        uses: flatpak/flatpak-github-actions/flat-manager@10a3c29f0162516f0f68006be14c92f34bd4fa6c
+        uses: flatpak/flatpak-github-actions/flat-manager@92ae9851ad316786193b1fd3f40c4b51eb5cb101
         with:
           flat-manager-url: https://hub.flathub.org/
           repository: beta
@@ -138,7 +138,7 @@ jobs:
 
       - name: Push to Flathub (stable)
         if: ${{ inputs.publish == true && (inputs.stableBuild == true || inputs.stableBuild == 'true') }}
-        uses: flatpak/flatpak-github-actions/flat-manager@10a3c29f0162516f0f68006be14c92f34bd4fa6c
+        uses: flatpak/flatpak-github-actions/flat-manager@92ae9851ad316786193b1fd3f40c4b51eb5cb101
         with:
           flat-manager-url: https://hub.flathub.org/
           repository: stable

.github/workflows/linux_build_qt.yml

@@ -55,7 +55,7 @@ jobs:
       CCACHE_DIR: ${{ github.workspace }}/.ccache
       CCACHE_COMPRESS: true
       CCACHE_COMPRESSLEVEL: 9
-      CCACHE_MAXSIZE: 500M
+      CCACHE_MAXSIZE: 100M
 
     steps:
       - name: Checkout Repository

.github/workflows/macos_build.yml

@@ -12,7 +12,7 @@ on:
       os:
         required: false
         type: string
-        default: macos-15
+        default: macos-26
       patchesUrl:
         required: false
         type: string
@@ -42,7 +42,7 @@ jobs:
       CCACHE_DIR: ${{ github.workspace }}/.ccache
       CCACHE_COMPRESS: true
       CCACHE_COMPRESSLEVEL: 9
-      CCACHE_MAXSIZE: 500M
+      CCACHE_MAXSIZE: 100M
       # Only way to use a secret in an if statement
       SIGN_KEY: ${{ secrets.APPLE_SIGN_P12_B64 }}
 
@@ -62,8 +62,8 @@ jobs:
           echo "#define DEFAULT_UPDATER_CHANNEL \"stable\"" > ./pcsx2-qt/DefaultUpdaterChannel.h
           cat ./pcsx2-qt/DefaultUpdaterChannel.h
 
-      - name: Use Xcode 16.4
-        run: sudo xcode-select -s /Applications/Xcode_16.4.app
+      - name: Use Xcode 26.0.1
+        run: sudo xcode-select -s /Applications/Xcode_26.0.1.app
 
       - name: Prepare Artifact Metadata
         id: artifact-metadata

.github/workflows/release_cut_new.yml

@@ -203,7 +203,7 @@ jobs:
           echo "TAG_VAL=${TAG_VAL}"
           gh release edit ${TAG_VAL} --draft=false --repo PCSX2/pcsx2
 
-      - uses: actions/setup-node@v5
+      - uses: actions/setup-node@v6
         with:
           node-version: 22