poppler: upgrade 21.11.0 -> 21.12.0

Release 21.12.0:
core:
 * Add API to add images
 * CairoOutputDev: Fix de-duping of Flate images
 * Fix crash on broken files when using non-default ENABLE_ZLIB_UNCOMPRESS. Issue openembedded#393
 * Minor code improvements
glib:
 * Add API for validation of signatures
 * Add API to read/save to file descriptor
utils:
 * pdftohtml: Reduce sensitivity of duplicate detection. Issue #1117
build system:
 * Increase C++ standard to 17

Signed-off-by: Andreas Müller <schnitzeltony@gmail.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-oe/recipes-support/poppler/poppler_21.11.0.bb → meta-oe/recipes-support/poppler/poppler_21.12.0.bb

@@ -7,7 +7,7 @@ SRC_URI = "http://poppler.freedesktop.org/${BP}.tar.xz \
            file://0001-Do-not-overwrite-all-our-build-flags.patch \
            file://basename-include.patch \
            "
-SRC_URI[sha256sum] = "31b76b5cac0a48612fdd154c02d9eca01fd38fb8eaa77c1196840ecdeb53a584"
+SRC_URI[sha256sum] = "acb840c2c1ec07d07e53c57c4b3a1ff3e3ee2d888d44e1e9f2f01aaf16814de7"
 
 DEPENDS = "fontconfig zlib cairo lcms glib-2.0"