ci: fix GitHub Actions variable replacement syntax

It was wrong in a few places.
Probably affected caching of deps?

Author: lread

.github/workflows/code-coverage.yml

@@ -15,8 +15,8 @@ jobs:
         path: |
           ~/.m2/repository
           ~/.gitlibs
-        key: $${ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
-        restore-keys: $${ runner.os }}-cljdeps-
+        key: ${{ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
+        restore-keys: ${{ runner.os }}-cljdeps-
 
     - name: Setup Java
       uses: actions/setup-java@v3

.github/workflows/native-image-test.yml

@@ -27,8 +27,8 @@ jobs:
         path: |
           ~/.m2/repository
           ~/.gitlibs
-        key: $${ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
-        restore-keys: $${ runner.os }}-cljdeps-
+        key: ${{ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
+        restore-keys: ${{ runner.os }}-cljdeps-
 
     #
     # Install GraalVM

.github/workflows/release.yml

@@ -26,8 +26,8 @@ jobs:
         path: |
           ~/.m2/repository
           ~/.gitlibs
-        key: $${ runner.os }}-cljdeps-release-${{ hashFiles('deps.edn') }}
-        restore-keys: $${ runner.os }}-cljdeps-release-
+        key: ${{ runner.os }}-cljdeps-release-${{ hashFiles('deps.edn') }}
+        restore-keys: ${{ runner.os }}-cljdeps-release-
 
     - name: Setup Java
       uses: actions/setup-java@v3

.github/workflows/unit-test.yml

@@ -32,8 +32,8 @@ jobs:
         path: |
           ~/.m2/repository
           ~/.gitlibs
-        key: $${ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
-        restore-keys: $${ runner.os }}-cljdeps-
+        key: ${{ runner.os }}-cljdeps-${{ hashFiles('deps.edn') }}
+        restore-keys: ${{ runner.os }}-cljdeps-
 
     - name: Node modules cache
       uses: actions/cache@v3