Introduces 17 new commits in [MU_BASECORE](https://github.com/microsoft/mu_basecore.git).

<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/microsoft/mu_basecore/commit/3a55a400815a25a25a9aa657e99c95edf750188e">3a55a4</a> [CHERRY-PICK] [Release/202311] UnitTestFrameworkPkg: Fix Google Test components with multiple files (<a href="https://github.com/microsoft/mu_basecore/pull/891">#891</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/1475a86d1603236e0c1da7d22d37021c8dc7bf91">1475a8</a> [CHERRY-PICK] [RELEASE/202311] Pulling PixieFail changes from EDK2 for CVE-2023-45237 and CVE-2023-45236 (<a href="https://github.com/microsoft/mu_basecore/pull/897">#897</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/23c33e211ef80511d161d3804ffe5ff4b00c652d">23c33e</a> BaseTools/Plugin/HostBasedUnitTestRunner: Fix invalid escape in HostBasedUnitTest.py (<a href="https://github.com/microsoft/mu_basecore/pull/899">#899</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/f598b780f7ae52d90422750214e2450fa24d4ded">f598b7</a> [CHERRY-PICK] UefiCpuPkg:fix issue when splitting paging entry (<a href="https://github.com/microsoft/mu_basecore/pull/909">#909</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/bbbff00dc39a67dc1e44aa0ce392d460b12f66b9">bbbff0</a> Change CpuDeadLoops to panic calls in PiSmmCpuDxeSmm.c (<a href="https://github.com/microsoft/mu_basecore/pull/892">#892</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/3ab77179e0d08269b155392c44e2f14724114e4e">3ab771</a> Added mock functions for UefiBootServicesTableLib</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/87b10e679399232d60fefdd6515812bd74571b6d">87b10e</a> Added mock functions for PciExpressLib</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/5a22ca63d43d7fa162a3adcfbc8d7eb3ffff3c60">5a22ca</a> Added mock functions for TimerLib</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/86dc06813bc2e1bbd59f06f52b3c97fb722718c0">86dc06</a> pip: update edk2-pytool-library requirement from ~=0.21.6 to ~=0.21.7 (<a href="https://github.com/microsoft/mu_basecore/pull/906">#906</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/e6d01390794aa0505d0659bc484f4d2fdba1e5d4">e6d013</a> pip: update edk2-pytool-extensions requirement from ~=0.27.5 to ~=0.27.6 (<a href="https://github.com/microsoft/mu_basecore/pull/907">#907</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/f9c86cda20d912e2ae6cce5e6daeae01ed6e8b52">f9c86c</a> pip: update edk2-pytool-library requirement from ~=0.21.7 to ~=0.21.8 (<a href="https://github.com/microsoft/mu_basecore/pull/966">#966</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/884e654b29d3611f976d5b9629ae9af920532dd3">884e65</a> Repo File Sync: synced file(s) with microsoft/mu_devops (<a href="https://github.com/microsoft/mu_basecore/pull/982">#982</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/fd8a09795aa2ea2a091906efb92124eb85d49e05">fd8a09</a> Host Based Unit Test updates (<a href="https://github.com/microsoft/mu_basecore/pull/837">#837</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/307dc02e66899fd9be316a2143783b261375b884">307dc0</a> GitHub Action: Bump robinraju/release-downloader from 1.10 to 1.11 (<a href="https://github.com/microsoft/mu_basecore/pull/1016">#1016</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/57770989fcac90b6e4046f5cd9a692afea1f318f">577709</a> pip: update edk2-pytool-extensions requirement from ~=0.27.6 to ~=0.27.8 (<a href="https://github.com/microsoft/mu_basecore/pull/1028">#1028</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/7cf3382ebaf5b5b5a2487d7d13e910c1c7dac233">7cf338</a> pip: update edk2-pytool-extensions requirement from ~=0.27.8 to ~=0.27.9 (<a href="https://github.com/microsoft/mu_basecore/pull/1033">#1033</a>)</li>
<li><a href="https://github.com/microsoft/mu_basecore/commit/90adf2bc49197314f6d8b2bb40d63d4c5c503065">90adf2</a> BaseTools/Plugin/RustEnvironmentCheck: Use pytools Rust helpers (<a href="https://github.com/microsoft/mu_basecore/pull/1037">#1037</a>)</li>
</ul>
</details>

Signed-off-by: Project Mu Bot <[email protected]>