Merge remote-tracking branch 'upstream/bugfix-2.0.x' into ender3v2_bugfix

* upstream/bugfix-2.0.x: (141 commits)
  ♻️ Refactor status screen timeout
  [cron] Bump distribution date (2021-06-27)
  🎨 Small tweak, ms => now
  🎨 Format onboard_sd.cpp
  🐛 Fix Z_MULTI_ENDSTOPS + NUM_Z_STEPPER_DRIVERS 4 compile (MarlinFirmware#22203)
  ✨ Update/extend Quiet Probing (MarlinFirmware#22205)
  🔧 Fix E.S.T. sanity-check errors (MarlinFirmware#22224)
  🚸 Expand box in draw_boxed_string (MarlinFirmware#22209)
  🎨 Fix and improve FTDI Eve Touch UI (MarlinFirmware#22223)
  [cron] Bump distribution date (2021-06-26)
  📝 Update TMC SPI endstops comment (MarlinFirmware#22221)
  🎨 Power-off tone followup (MarlinFirmware#22222)
  🐛 Trigger existing endstops on G38 hit
  [cron] Bump distribution date (2021-06-25)
  🐛 Fix Octopus build on case-sensitive FS (MarlinFirmware#22206)
  [cron] Bump distribution date (2021-06-24)
  ✨ Power-off confirm / beep options (MarlinFirmware#22191)
  [cron] Bump distribution date (2021-06-23)
  🌐 Update Russian language (MarlinFirmware#22193)
  🚸 MarlinUI Move Z >= 1000 (MarlinFirmware#22192)
  ...

# Conflicts:
#	Marlin/Configuration.h

Author: Michael

.github/workflows/test-builds.yml

@@ -56,29 +56,31 @@ jobs:
 
         # STM32F1 (Maple) Environments
 
-        - STM32F103RC_btt
-        - STM32F103RC_btt_USB
-        - STM32F103RE_btt
-        - STM32F103RE_btt_USB
+        #- STM32F103RC_btt_maple
+        - STM32F103RC_btt_USB_maple
         - STM32F103RC_fysetc
         - STM32F103RC_meeb
         - jgaurora_a5s_a1
         - STM32F103VE_longer
-        - mks_robin
+        #- mks_robin_maple
         - mks_robin_lite
         - mks_robin_pro
-        - STM32F103RET6_creality
-        - mks_robin_nano35
+        #- mks_robin_nano35_maple
+        #- STM32F103RET6_creality_maple
 
         # STM32 (ST) Environments
 
-        - STM32F103RC_btt_stm32
+        - STM32F103RC_btt
+        #- STM32F103RC_btt_USB
+        - STM32F103RE_btt
+        - STM32F103RE_btt_USB
+        - STM32F103RET6_creality
         - STM32F407VE_black
         - STM32F401VE_STEVAL
         - BIGTREE_BTT002
         - BIGTREE_SKR_PRO
         - BIGTREE_GTR_V1_0
-        - mks_robin_stm32
+        - mks_robin
         - ARMED
         - FYSETC_S6
         - STM32F070CB_malyan
@@ -88,7 +90,7 @@ jobs:
         - rumba32
         - LERDGEX
         - LERDGEK
-        - mks_robin_nano35_stm32
+        - mks_robin_nano35
         - NUCLEO_F767ZI
         - REMRAM_V1
         - BTT_SKR_SE_BX
@@ -107,8 +109,25 @@ jobs:
 
     steps:
 
+    - name: Check out the PR
+      uses: actions/checkout@v2
+
+    - name: Cache pip
+      uses: actions/cache@v2
+      with:
+        path: ~/.cache/pip
+        key: ${{ runner.os }}-pip-${{ hashFiles('**/requirements.txt') }}
+        restore-keys: |
+          ${{ runner.os }}-pip-
+
+    - name: Cache PlatformIO
+      uses: actions/cache@v2
+      with:
+        path: ~/.platformio
+        key: ${{ runner.os }}-${{ hashFiles('**/lockfiles') }}
+
     - name: Select Python 3.7
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v2
       with:
         python-version: '3.7' # Version range or exact version of a Python version to use, using semvers version range syntax.
         architecture: 'x64' # optional x64 or x86. Defaults to x64 if not specified
@@ -118,9 +137,6 @@ jobs:
         pip install -U https://github.com/platformio/platformio-core/archive/develop.zip
         platformio update
 
-    - name: Check out the PR
-      uses: actions/checkout@v2
-
     - name: Run ${{ matrix.test-platform }} Tests
       run: |
         make tests-single-ci TEST_TARGET=${{ matrix.test-platform }}