Release 2.8.4

This release introduces several vulnerability fixes:

• Fixes a heap OOB failure in ThreadUnsafeUnigramCandidateSampler caused by missing validation (CVE-2022-41880)
• Fixes a segfault in ndarray_tensor_bridge (CVE-2022-41884)
• Fixes an overflow in FusedResizeAndPadConv2D (CVE-2022-41885)
• Fixes a overflow in ImageProjectiveTransformV2 (CVE-2022-41886)
• Fixes an FPE in tf.image.generate_bounding_box_proposals on GPU (CVE-2022-41888)
• Fixes a segfault in pywrap_tfe_src caused by invalid attributes (CVE-2022-41889)
• Fixes a CHECK fail in BCast (CVE-2022-41890)
• Fixes a segfault in TensorListConcat (CVE-2022-41891)
• Fixes a CHECK_EQ fail in TensorListResize (CVE-2022-41893)
• Fixes an overflow in CONV_3D_TRANSPOSE on TFLite (CVE-2022-41894)
• Fixes a heap OOB in MirrorPadGrad (CVE-2022-41895)
• Fixes a crash in Mfcc (CVE-2022-41896)
• Fixes a heap OOB in FractionalMaxPoolGrad (CVE-2022-41897)
• Fixes a CHECK fail in SparseFillEmptyRowsGrad (CVE-2022-41898)
• Fixes a CHECK fail in SdcaOptimizer (CVE-2022-41899)
• Fixes a heap OOB in FractionalAvgPool and FractionalMaxPool(CVE-2022-41900)
• Fixes a CHECK_EQ in SparseMatrixNNZ (CVE-2022-41901)
• Fixes an OOB write in grappler (CVE-2022-41902)
• Fixes a overflow in ResizeNearestNeighborGrad (CVE-2022-41907)
• Fixes a CHECK fail in PyFunc (CVE-2022-41908)
• Fixes a segfault in CompositeTensorVariantToComponents (CVE-2022-41909)
• Fixes a invalid char to bool conversion in printing a tensor (CVE-2022-41911)
• Fixes a heap overflow in QuantizeAndDequantizeV2 (CVE-2022-41910)
• Fixes a CHECK failure in SobolSample via missing validation (CVE-2022-35935)
• Fixes a CHECK fail in TensorListScatter and TensorListScatterV2 in eager mode (CVE-2022-35935)