Ci fixes (#96)

* Use locked versions of build dependencies

* Update svdtools to 0.3.20 to avoid type inference error

* Correctly indent multiline string

* Revert to svd2rust 0.32.0

svd/rp2040.yaml

@@ -5,22 +5,22 @@ DMA:
     _modify:
       "CHAIN_TO":
         description: "When this channel completes, it will trigger the channel indicated by CHAIN_TO. Disable by setting CHAIN_TO = _(this channel)_. \\n
-        Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
+          Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
   CH0_AL1_CTRL:
     _modify:
       "CHAIN_TO":
         description: "When this channel completes, it will trigger the channel indicated by CHAIN_TO. Disable by setting CHAIN_TO = _(this channel)_. \\n
-        Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
+          Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
   CH0_AL2_CTRL:
     _modify:
       "CHAIN_TO":
         description: "When this channel completes, it will trigger the channel indicated by CHAIN_TO. Disable by setting CHAIN_TO = _(this channel)_. \\n
-        Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
+          Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
   CH0_AL3_CTRL:
     _modify:
       "CHAIN_TO":
         description: "When this channel completes, it will trigger the channel indicated by CHAIN_TO. Disable by setting CHAIN_TO = _(this channel)_. \\n
-        Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
+          Reset value is 0, which means for channels 1 and above the default will be to chain to channel 0 - set this field to avoid this behaviour."
 
   "CH*_CTRL*":
     "TREQ_SEL":

update.sh

@@ -5,11 +5,11 @@ SVDTOOLS="${SVDTOOLS:-svdtools}"
 
 set -ex
 
-cargo install --version 0.32.0 svd2rust
-cargo install --version 0.11.1  form
+cargo install --version 0.32.0 svd2rust --locked
+cargo install --version 0.12.1 form --locked
 rustup component add rustfmt
 if [ "$SVDTOOLS" == "svdtools" ]; then
-    cargo install --version 0.3.12 svdtools
+    cargo install --version 0.3.20 svdtools --locked
 else
     python3 -mvenv --clear .venv
     source .venv/bin/activate