Updated vcpkg to support Geospatial PDFs

[gabriel-bolbotina]

Issue

GeoPDF layers were marked as invalid when opening QGIS projects in the mobile app, even though the same projects worked fine in QGIS Desktop.

Solution

Added the poppler feature to the GDAL dependency in vcpkg.json.

Acceptance criteria

• Geospatial PDF files can be opened in the mobile app

[github-actions]

Coverage Report for CI Build 33168002402

Coverage decreased (-0.5%) to 59.08%

Details

• Coverage decreased (-0.5%) from the base build.
• Patch coverage: No coverable lines changed in this PR.
• 435 coverage regressions across 7 files.

Uncovered Changes

No uncovered changes found.

Coverage Regressions

435 previously-covered lines in 7 files lost coverage.

File	Lines Losing Coverage	Coverage
mm/app/maptools/recordingmaptool.cpp	185	68.01%
mm/app/position/positionkit.cpp	98	60.35%
mm/app/main.cpp	81	36.73%
mm/app/variablesmanager.cpp	49	25.74%
mm/app/position/geoposition.cpp	9	80.0%
mm/core/merginapi.cpp	7	74.79%
mm/app/position/positiontransformer.cpp	6	85.09%

---

Coverage Stats

Relevant Lines:	15704
Covered Lines:	9278
Line Coverage:	59.08%
Coverage Strength:	97.19 hits per line

---

💛 - Coveralls

[github-actions]

📦 Build Artifacts Ready

OS	Status	Build	Info	Workflow run
macOS Build	❌	Build failed or not found.		#7244
linux Build	📬	Mergin Maps 72701 x86_64	Expires: 26/11/2026	#7270
win64 Build	📬	Mergin Maps 64461 win64	Expires: 26/11/2026	#6446
Android Build	📬	Mergin Maps 855411 APK [armeabi-v7a]	Expires: 26/11/2026	#8554
	📬	Mergin Maps 855411 APK [armeabi-v7a]	Google Play Store	#8554
Android Build	📬	Mergin Maps 855451 APK [arm64-v8a]	Expires: 26/11/2026	#8554
	📬	Mergin Maps 855451 APK [arm64-v8a]	Google Play Store	#8554
iOS Build	❌	Build failed or not found.		#9496

[github-actions]

📦 Build Artifacts Ready

OS	Status	Build	Info	Workflow run
macOS Build	📬	Mergin Maps 72442 dmg	Expires: 26/11/2026	#7244
linux Build	📬	Mergin Maps 72701 x86_64	Expires: 26/11/2026	#7270
win64 Build	📬	Mergin Maps 64461 win64	Expires: 26/11/2026	#6446
Android Build	📬	Mergin Maps 855411 APK [armeabi-v7a]	Expires: 26/11/2026	#8554
	📬	Mergin Maps 855411 APK [armeabi-v7a]	Google Play Store	#8554
Android Build	📬	Mergin Maps 855451 APK [arm64-v8a]	Expires: 26/11/2026	#8554
	📬	Mergin Maps 855451 APK [arm64-v8a]	Google Play Store	#8554
iOS Build	📬		Build number: 26.08.949612	#9496

[IvaKuklica]

Testing note

Tested on:
iPhone 15, iOS 26
Samsung Galaxy A53, Android 16
Desktop application

Result: In all three environments, the GeoPDF layer(s) opened correctly and were marked as valid — no invalid-layer warnings, correct rendering and extent/CRS on all platforms.

✅ Fix confirmed — acceptance criteria met (Geospatial PDF files can be opened in the mobile app)